🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 50 (from laksa195)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa050.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157","crawl_time":1776326279,"first_indexed_time":1526179214,"http_code":200,"src_unparsed":"com,verywellhealth!www,\/am-i-losing-my-sense-of-smell-1192157 s443","src_root_hash":"5681562863987870850","history_drop_reason":null,"meta_title":"Anosmia (Loss of Sense of Smell): Causes, Conditions, Treatment","meta_descriptions":["Many conditions can temporarily or permanently diminish our sense of smell, including sinus problems, medications, and possibly COVID-19. Find out more about anosmia."],"attrs_boilerpipe_text":"Key Takeaways\nLoss of smell, or anosmia, can happen for many reasons, including having COVID-19.\nNasal sprays containing zinc can cause permanent loss of smell.\nBrain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia.\nA partial or total loss of smell—called anosmia—can happen for many reasons—including having\nCOVID-19\n. Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are\nlosing their sense of taste\n.\nA loss of smell is most often temporary, depending on the cause.\nMaskot \/ Getty Images\nAnosmia Causes\nMany conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as\nAlzheimer's disease\nor\nParkinson's disease\n. Some people are born with a diminished or heightened ability to smell as compared to others.\nIn general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60.\nStudies also show that women tend to have a more accurate sense of smell than men.\nIn addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition.\nCOVID-19 and Loss of Smell\nThe Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of\nCOVID-19\ninfection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including\nhow it's diagnosed\nand answers to common questions you may have.\nIf you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances.\nThe following conditions can cause anosmia that is often temporary or reversible:\nAllergies\nCongestion from colds or upper respiratory infections\nDental problems or oral surgery\nDeviated septum\nNasal polyps\n(often must be treated surgically)\nSinusitis\nTemporary fluctuations in hormone levels\nVitamin deficiencies or malnutrition (rare)\nThe loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable.\nMedication side effects that cause loss of smell may be temporary or permanent, depending on the medication.\nNasal Sprays and Loss of Smell\nZinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well.\nThe use of cocaine or other drugs that are snorted up the nose can also cause anosmia.\nLike smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return.\nThe list of medications that may alter a person's ability to smell or taste is very long, but it includes many:\nAntibiotics\nAntidepressants\nBlood pressure medications\nHeart medications\nAssociated Conditions\nMany conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not.\nBrain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including:\nParkinson's disease\nMultiple sclerosis\nAlzheimer's disease\nRadiation treatment to the head and neck may also cause anosmia.\nSome other conditions that may cause anosmia include:\nAdrenocortical insufficiency syndrome\nCerebral vascular accident (stroke)\nCushing's syndrome\nDiabetes\nEpilepsy\nKallmann's syndrome\nHypothyroidism\nPsychiatric conditions\nSjögren's disease\nSystemic lupus erythematosus\nTumors of the brain, sinus cavities, or nose\nTurner syndrome\nDiagnosis\nYour healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam.\nIf warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors.\nThe Scratch-and-Sniff Test\nA healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells.\nTreatment\nAs mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition.\nNasal polyps or deviated septums can be treated\nsurgically\n, sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications.\nIf the anosmia is a side effect of a medication you are taking, the medication should be stopped.\nThere is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually.\nWhen to See a Healthcare Provider\nAny unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms.\nGo to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness.\n7 Sources\nVerywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our\neditorial process\nto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.\nBoyce JM, Shone GR.\nEffects of ageing on smell and taste\n.\nPostgrad Med J\n. 2006;82(966):239-41. doi:10.1136\/pgmj.2005.039453\nSorokowski P, Karwowski M, Misiak M, et al.\nSex differences in human olfaction: A meta-analysis\n.\nFront Psychol\n. 2019;10:242. doi:10.3389\/fpsyg.2019.00242\nBoesveldt S, Postma EM, Boak D, et al.\nAnosmia-a clinical review\n.\nChem Senses\n. 2017;42(7):513-523. doi:10.1093\/chemse\/bjx025\nSchiffman SS.\nInfluence of medications on taste and smell\n.\nWorld J Otorhinolaryngol Head Neck Surg\n. 2018;4(1):84-91. doi:10.1016\/j.wjorl.2018.02.005\nMolteni M, Saibene AM, Luciano K, Maccari A.\nSnorting the clivus away: an extreme case of cocaine-induced midline destructive lesion\n.\nBMJ Case Rep\n. 2016;2016. doi:10.1136\/bcr-2016-216393\nDouglass R, Heckman G.\nDrug-related taste disturbance: a contributing factor in geriatric syndromes\n.\nCan Fam Physician\n. 2010;56(11):1142-7.\nSchofield PW, Moore TM, Gardner A.\nTraumatic brain injury and olfaction: a systematic review\n.\nFront Neurol\n. 2014;5:5. doi:10.3389\/fneur.2014.00005\nAdditional Reading\nAmerican Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste. \nAmerican Family Physician. Smell and Taste Disorders: A Primary Approach. \nMedline Plus. Smell-impaired.\nNIH Senior Health. Problems with smell. \nBy\nKristin Hayes, RN\nKristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children.\nWas this page helpful?\nThanks for your feedback!\nWhat is your feedback?","attrs_markdown":"[Skip to content](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157#skip-to-content)\n\nMenu\n\n- [Health A-Z](https:\/\/www.verywellhealth.com\/health-a-z-4014770)\n  - [Colorectal Cancer](https:\/\/www.verywellhealth.com\/colon-cancer-4014742)\n  - [Arthritis](https:\/\/www.verywellhealth.com\/arthritis-overview-4582013)\n  - [Type 2 Diabetes](https:\/\/www.verywellhealth.com\/type-2-diabetes-overview-4581874)\n  - [Digestive Health](https:\/\/www.verywellhealth.com\/digestive-health-4141198)\n  - [Multiple Sclerosis](https:\/\/www.verywellhealth.com\/multiple-sclerosis-overview-4581925)\n  - [Skin Health](https:\/\/www.verywellhealth.com\/skin-health-4014649)\n  - [View All](https:\/\/www.verywellhealth.com\/health-a-z-4014770)\n- [Prevention & Treatment](https:\/\/www.verywellhealth.com\/prevention-and-treatment-4158390)\n  - 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Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment.\n\nⒸ 2026 People Inc. — All rights reserved\n\n# What Is Loss of Smell?\nOfficially known as anosmia\n\nBy [Kristin Hayes, RN](https:\/\/www.verywellhealth.com\/kristin-hayes-rn-1191722)\n\nUpdated on January 11, 2026\n\nMedically reviewed by  [Corinne Savides Happel, MD](https:\/\/www.verywellhealth.com\/corinne-savides-happel-md-4781313)\n\nTable of Contents\n\nView All\n\nTable of Contents\n\n- [Causes](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157#toc-anosmia-causes)\n- [Diagnosis](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157#toc-diagnosis)\n- [Treatment](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157#toc-treatment)\n- [When to See a Doctor](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-smell-1192157#toc-when-to-see-a-healthcare-provider)\n\n### Key Takeaways\n- Loss of smell, or anosmia, can happen for many reasons, including having COVID-19.\n- Nasal sprays containing zinc can cause permanent loss of smell.\n- Brain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia.\n\nA partial or total loss of smell—called anosmia—can happen for many reasons—including having [COVID-19](https:\/\/www.verywellhealth.com\/coronavirus-overview-4783291). Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are [losing their sense of taste](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-taste-1192002).\n\nA loss of smell is most often temporary, depending on the cause.\n\n![Woman smelling leaves while sitting at table in perfume workshop]()\n\n![Woman smelling leaves while sitting at table in perfume workshop](https:\/\/www.verywellhealth.com\/thmb\/GbnyzbWv_5fpecNT3lkFkk981E0=\/1500x0\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/woman-smelling-leaves-while-sitting-at-table-in-perfume-workshop-953958166-e2334cddd1514d57bbf966a80675eb99.jpg)\n\nMaskot \/ Getty Images\n## Anosmia Causes\nMany conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as [Alzheimer's disease](https:\/\/www.verywellhealth.com\/alzheimers-4581763) or [Parkinson's disease](https:\/\/www.verywellhealth.com\/parkinsons-overview-4581910). Some people are born with a diminished or heightened ability to smell as compared to others.\n\nIn general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60.\n\nStudies also show that women tend to have a more accurate sense of smell than men.\n\nIn addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition.\n\n### COVID-19 and Loss of Smell\nThe Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of [COVID-19](https:\/\/www.verywellhealth.com\/coronavirus-overview-4783291) infection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including [how it's diagnosed](https:\/\/www.verywellhealth.com\/when-to-test-for-covid-8422718) and answers to common questions you may have.\n\nIf you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances.\n\nThe following conditions can cause anosmia that is often temporary or reversible:\n\n- Allergies\n- Congestion from colds or upper respiratory infections\n- Dental problems or oral surgery\n- [Deviated septum](https:\/\/www.verywellhealth.com\/what-causes-a-deviated-septum-7852960)\n- [Nasal polyps](https:\/\/www.verywellhealth.com\/how-to-tell-if-you-have-nasal-polyps-5206960) (often must be treated surgically)\n- [Sinusitis](https:\/\/www.verywellhealth.com\/sinus-infection-overview-83143)\n- Temporary fluctuations in hormone levels\n- Vitamin deficiencies or malnutrition (rare)\n\nThe loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable.\n\nMedication side effects that cause loss of smell may be temporary or permanent, depending on the medication.\n\n### Nasal Sprays and Loss of Smell\nZinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well.\n\nThe use of cocaine or other drugs that are snorted up the nose can also cause anosmia. Like smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return.\n\nThe list of medications that may alter a person's ability to smell or taste is very long, but it includes many:\n\n- Antibiotics\n- Antidepressants\n- Blood pressure medications\n- Heart medications\n### Associated Conditions\nMany conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not.\n\nBrain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including:\n\n- Parkinson's disease\n- [Multiple sclerosis](https:\/\/www.verywellhealth.com\/multiple-sclerosis-overview-4581925)\n- Alzheimer's disease\n\nRadiation treatment to the head and neck may also cause anosmia.\n\nSome other conditions that may cause anosmia include:\n\n- Adrenocortical insufficiency syndrome\n- Cerebral vascular accident (stroke)\n- [Cushing's syndrome](https:\/\/www.verywellhealth.com\/cushings-syndrome-overview-2616549)\n- Diabetes\n- Epilepsy\n- Kallmann's syndrome\n- [Hypothyroidism](https:\/\/www.verywellhealth.com\/hypothyroidism-4013991)\n- Psychiatric conditions\n- [Sjögren's disease](https:\/\/www.verywellhealth.com\/sjogrens-syndrome-facts-190388)\n- [Systemic lupus erythematosus](https:\/\/www.verywellhealth.com\/lupus-8694321)\n- Tumors of the brain, sinus cavities, or nose\n- [Turner syndrome](https:\/\/www.verywellhealth.com\/turner-syndrome-5025073)\n## Diagnosis\nYour healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam.\n\nIf warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors.\n\n### The Scratch-and-Sniff Test\nA healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells.\n## Treatment\nAs mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition.\n\nNasal polyps or deviated septums can be treated [surgically](https:\/\/www.verywellhealth.com\/feeling-tired-after-surgery-3156867), sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications.\n\nIf the anosmia is a side effect of a medication you are taking, the medication should be stopped.\n\nThere is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually.\n\n## When to See a Healthcare Provider\nAny unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms.\n\nGo to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness.\n\nRead more:\n\n- [Health A-Z](https:\/\/www.verywellhealth.com\/health-a-z-4014770)\n- [Ear, Nose & Throat](https:\/\/www.verywellhealth.com\/ear-nose-throat-4014732)\n- [ENT Disorders](https:\/\/www.verywellhealth.com\/ent-disorders-a-z-4014008)\n\n7 Sources\n\nVerywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our [editorial process](https:\/\/www.verywellhealth.com\/verywell-editorial-process-4777042) to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.\n\n1. Boyce JM, Shone GR. [Effects of ageing on smell and taste](https:\/\/doi.org\/10.1136\/pgmj.2005.039453). *Postgrad Med J*. 2006;82(966):239-41. doi:10.1136\/pgmj.2005.039453\n2. Sorokowski P, Karwowski M, Misiak M, et al. [Sex differences in human olfaction: A meta-analysis](https:\/\/doi.org\/10.3389\/fpsyg.2019.00242). *Front Psychol*. 2019;10:242. doi:10.3389\/fpsyg.2019.00242\n3. Boesveldt S, Postma EM, Boak D, et al. [Anosmia-a clinical review](https:\/\/doi.org\/10.1093\/chemse\/bjx025). *Chem Senses*. 2017;42(7):513-523. doi:10.1093\/chemse\/bjx025\n4. Schiffman SS. [Influence of medications on taste and smell](https:\/\/doi.org\/10.1016\/j.wjorl.2018.02.005). *World J Otorhinolaryngol Head Neck Surg*. 2018;4(1):84-91. doi:10.1016\/j.wjorl.2018.02.005\n5. Molteni M, Saibene AM, Luciano K, Maccari A. [Snorting the clivus away: an extreme case of cocaine-induced midline destructive lesion](https:\/\/doi.org\/10.1136\/bcr-2016-216393). *BMJ Case Rep*. 2016;2016. doi:10.1136\/bcr-2016-216393\n6. Douglass R, Heckman G. [Drug-related taste disturbance: a contributing factor in geriatric syndromes](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC2980431\/#__ffn_sectitle). *Can Fam Physician*. 2010;56(11):1142-7.\n7. Schofield PW, Moore TM, Gardner A. [Traumatic brain injury and olfaction: a systematic review](https:\/\/doi.org\/10.3389\/fneur.2014.00005). *Front Neurol*. 2014;5:5. doi:10.3389\/fneur.2014.00005\n\nAdditional Reading\n\n- American Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste.\n- American Family Physician. Smell and Taste Disorders: A Primary Approach.\n- Medline Plus. Smell-impaired.\n- NIH Senior Health. Problems with smell.\n\n![Kristin Hayes]()\n\n![Kristin Hayes](https:\/\/www.verywellhealth.com\/thmb\/Wk8yKrW2qB5d7IWKK5L4jnhwPN0=\/144x144\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/KristinHayes-1000-1a35767549884928b0dd90a19a2be0ed.jpg)\n\nBy [Kristin Hayes, RN](https:\/\/www.verywellhealth.com\/kristin-hayes-rn-1191722)   \n Kristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children.\n\n[See Our Editorial Process](https:\/\/www.verywellhealth.com\/verywell-editorial-process-4777042)\n\n[Meet Our Medical Expert Board](https:\/\/www.verywellhealth.com\/meet-our-medical-expert-board-11762003)\n\nShare Feedback\n\nWas this page helpful?\n\nThanks for your feedback\\!\n\nWhat is your feedback?\n\nHelpful\n\nReport an Error\n\nOther\n\nRelated Articles\n\n[![Shot of a frustrated businesswoman using a tissue to sneeze in while being seated in the office.]() ![Shot of a frustrated businesswoman using a tissue to sneeze in while being seated in the office.](https:\/\/www.verywellhealth.com\/thmb\/kDu1PTStCAe7cYFPozwkKIA64Es=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-854418348-300dc589eb31478fac740c15b35fb7f8.jpg) Why You Might Have a Stuffy Nose at Night](https:\/\/www.verywellhealth.com\/why-do-i-get-congested-at-night-1192188)\n\n[![Preauricular hole]() ![Preauricular hole](https:\/\/www.verywellhealth.com\/thmb\/1KwfI40W9pkyAWHml_A1aFLnAT4=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/Preauricular_Sinus_1_030508-56af30463df78cf772c15da6.jpg) Preauricular Pits (Ear Holes) and Why Some People Have Them](https:\/\/www.verywellhealth.com\/what-is-that-hole-near-my-childs-ear-1048873)\n\n[![A phone on a surface with 911 being called (When to See a Healthcare Provider About Throat Tightness)]() ![A phone on a surface with 911 being called (When to See a Healthcare Provider About Throat Tightness)](https:\/\/www.verywellhealth.com\/thmb\/zyMKSQiADnwA0sUfMSWW972BFro=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/VWH_Illustration_When-to-See-a-Healthcar-Provider-About-Throat-Tightness_Illustrator_Jessica-Olah_Less-Text_Final-51ce0aae5f2c4b4f823d17a610788b1b.jpg) Why Does My Throat Feel Tight?](https:\/\/www.verywellhealth.com\/tightness-in-throat-5181115)\n\n[![Woman blowing her nose]() ![Woman blowing her nose](https:\/\/www.verywellhealth.com\/thmb\/eP3ZvmtmKjnlVcKzRrHixiFCDJM=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-1321005006-948f0d2c56c4416fae19e9f75d7df583.jpg) Nasal Vestibulitis: Causes and Treatment](https:\/\/www.verywellhealth.com\/nasal-vestibulitis-7106753)\n\n[![An older person receiving a vaccine]() ![An older person receiving a vaccine](https:\/\/www.verywellhealth.com\/thmb\/hpi7QbfnVH8wKKwzpGOnw_PL3S8=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/VWH-GettyImages-1352163629-f365e16e3abd49c7a397d062f0844ea1.jpg) Lung Cancer vs. Pneumonia: What Are the Differences?](https:\/\/www.verywellhealth.com\/pneumonia-vs-lung-cancer-5197860)\n\n[![Man with protective face mask sitting in waiting room - Contagious pneumonia ]() ![Man with protective face mask sitting in waiting room - Contagious pneumonia ](https:\/\/www.verywellhealth.com\/thmb\/qvjdPmx1oQalmTJyJ9m9kvzoos0=\/400x250\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/VWH-GettyImages-1431507211-05c33cf250b145a5a90692b4cebd981c.jpg) Is Pneumonia Contagious or Not? 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Treatment](https:\/\/www.verywellhealth.com\/prevention-and-treatment-4158390)\n- [Health Care](https:\/\/www.verywellhealth.com\/health-care-4014769)\n- [News](https:\/\/www.verywellhealth.com\/news-4846412)\n\n- [Meet Our Review Board](https:\/\/www.verywellhealth.com\/meet-our-medical-expert-board-11762003)\n- [About Us](https:\/\/www.verywellhealth.com\/about-us-5180305)\n- [Editorial Process](https:\/\/www.verywellhealth.com\/verywell-editorial-process-4777042)\n- [Privacy Policy](https:\/\/www.people.inc\/brands-privacy)\n- [In the News](https:\/\/www.verywellhealth.com\/in-the-news-4778971)\n- [Advertise](https:\/\/www.people.inc\/advertising)\n- [Terms of Service](https:\/\/www.people.inc\/brands-termsofservice)\n- [Careers](https:\/\/www.people.inc\/careers)\n- [Contact](https:\/\/www.verywellhealth.com\/about-us-5180305#toc-contact-us)\n\nFollow Us\n\nVerywell Health's content is for informational and educational purposes only. Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment.\n\nⒸ 2026 People Inc. — All rights reserved\n\nVerywell Health is part of the [People Inc.](https:\/\/www.people.inc\/) publishing family.","attrs_readable_markdown":"### Key Takeaways\n- Loss of smell, or anosmia, can happen for many reasons, including having COVID-19.\n- Nasal sprays containing zinc can cause permanent loss of smell.\n- Brain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia.\n\nA partial or total loss of smell—called anosmia—can happen for many reasons—including having [COVID-19](https:\/\/www.verywellhealth.com\/coronavirus-overview-4783291). Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are [losing their sense of taste](https:\/\/www.verywellhealth.com\/am-i-losing-my-sense-of-taste-1192002).\n\nA loss of smell is most often temporary, depending on the cause.\n\nMaskot \/ Getty Images\n\n## Anosmia Causes\nMany conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as [Alzheimer's disease](https:\/\/www.verywellhealth.com\/alzheimers-4581763) or [Parkinson's disease](https:\/\/www.verywellhealth.com\/parkinsons-overview-4581910). Some people are born with a diminished or heightened ability to smell as compared to others.\n\nIn general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60.\n\nStudies also show that women tend to have a more accurate sense of smell than men.\n\nIn addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition.\n\n### COVID-19 and Loss of Smell\nThe Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of [COVID-19](https:\/\/www.verywellhealth.com\/coronavirus-overview-4783291) infection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including [how it's diagnosed](https:\/\/www.verywellhealth.com\/when-to-test-for-covid-8422718) and answers to common questions you may have.\n\nIf you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances.\n\nThe following conditions can cause anosmia that is often temporary or reversible:\n\n- Allergies\n- Congestion from colds or upper respiratory infections\n- Dental problems or oral surgery\n- [Deviated septum](https:\/\/www.verywellhealth.com\/what-causes-a-deviated-septum-7852960)\n- [Nasal polyps](https:\/\/www.verywellhealth.com\/how-to-tell-if-you-have-nasal-polyps-5206960) (often must be treated surgically)\n- [Sinusitis](https:\/\/www.verywellhealth.com\/sinus-infection-overview-83143)\n- Temporary fluctuations in hormone levels\n- Vitamin deficiencies or malnutrition (rare)\n\nThe loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable.\n\nMedication side effects that cause loss of smell may be temporary or permanent, depending on the medication.\n\n### Nasal Sprays and Loss of Smell\nZinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well.\n\nThe use of cocaine or other drugs that are snorted up the nose can also cause anosmia. Like smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return.\n\nThe list of medications that may alter a person's ability to smell or taste is very long, but it includes many:\n\n- Antibiotics\n- Antidepressants\n- Blood pressure medications\n- Heart medications\n### Associated Conditions\nMany conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not.\n\nBrain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including:\n\n- Parkinson's disease\n- [Multiple sclerosis](https:\/\/www.verywellhealth.com\/multiple-sclerosis-overview-4581925)\n- Alzheimer's disease\n\nRadiation treatment to the head and neck may also cause anosmia.\n\nSome other conditions that may cause anosmia include:\n\n- Adrenocortical insufficiency syndrome\n- Cerebral vascular accident (stroke)\n- [Cushing's syndrome](https:\/\/www.verywellhealth.com\/cushings-syndrome-overview-2616549)\n- Diabetes\n- Epilepsy\n- Kallmann's syndrome\n- [Hypothyroidism](https:\/\/www.verywellhealth.com\/hypothyroidism-4013991)\n- Psychiatric conditions\n- [Sjögren's disease](https:\/\/www.verywellhealth.com\/sjogrens-syndrome-facts-190388)\n- [Systemic lupus erythematosus](https:\/\/www.verywellhealth.com\/lupus-8694321)\n- Tumors of the brain, sinus cavities, or nose\n- [Turner syndrome](https:\/\/www.verywellhealth.com\/turner-syndrome-5025073)\n## Diagnosis\nYour healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam.\n\nIf warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors.\n\n### The Scratch-and-Sniff Test\nA healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells.\n## Treatment\nAs mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition.\n\nNasal polyps or deviated septums can be treated [surgically](https:\/\/www.verywellhealth.com\/feeling-tired-after-surgery-3156867), sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications.\n\nIf the anosmia is a side effect of a medication you are taking, the medication should be stopped.\n\nThere is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually.\n\n## When to See a Healthcare Provider\nAny unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms.\n\nGo to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness.\n\n7 Sources\n\nVerywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our [editorial process](https:\/\/www.verywellhealth.com\/verywell-editorial-process-4777042) to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.\n\n1. Boyce JM, Shone GR. [Effects of ageing on smell and taste](https:\/\/doi.org\/10.1136\/pgmj.2005.039453). *Postgrad Med J*. 2006;82(966):239-41. doi:10.1136\/pgmj.2005.039453\n2. Sorokowski P, Karwowski M, Misiak M, et al. [Sex differences in human olfaction: A meta-analysis](https:\/\/doi.org\/10.3389\/fpsyg.2019.00242). *Front Psychol*. 2019;10:242. doi:10.3389\/fpsyg.2019.00242\n3. Boesveldt S, Postma EM, Boak D, et al. [Anosmia-a clinical review](https:\/\/doi.org\/10.1093\/chemse\/bjx025). *Chem Senses*. 2017;42(7):513-523. doi:10.1093\/chemse\/bjx025\n4. Schiffman SS. [Influence of medications on taste and smell](https:\/\/doi.org\/10.1016\/j.wjorl.2018.02.005). *World J Otorhinolaryngol Head Neck Surg*. 2018;4(1):84-91. doi:10.1016\/j.wjorl.2018.02.005\n5. Molteni M, Saibene AM, Luciano K, Maccari A. [Snorting the clivus away: an extreme case of cocaine-induced midline destructive lesion](https:\/\/doi.org\/10.1136\/bcr-2016-216393). *BMJ Case Rep*. 2016;2016. doi:10.1136\/bcr-2016-216393\n6. Douglass R, Heckman G. [Drug-related taste disturbance: a contributing factor in geriatric syndromes](https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC2980431\/#__ffn_sectitle). *Can Fam Physician*. 2010;56(11):1142-7.\n7. Schofield PW, Moore TM, Gardner A. [Traumatic brain injury and olfaction: a systematic review](https:\/\/doi.org\/10.3389\/fneur.2014.00005). *Front Neurol*. 2014;5:5. doi:10.3389\/fneur.2014.00005\n\nAdditional Reading\n\n- American Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste.\n- American Family Physician. Smell and Taste Disorders: A Primary Approach.\n- Medline Plus. Smell-impaired.\n- NIH Senior Health. Problems with smell.\n\n![Kristin Hayes](https:\/\/www.verywellhealth.com\/thmb\/Wk8yKrW2qB5d7IWKK5L4jnhwPN0=\/144x144\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/KristinHayes-1000-1a35767549884928b0dd90a19a2be0ed.jpg)\n\nBy [Kristin Hayes, RN](https:\/\/www.verywellhealth.com\/kristin-hayes-rn-1191722)   \n Kristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children.\n\nWas this page helpful?\n\nThanks for your feedback\\!\n\nWhat is your feedback?","meta_canonical":null}

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Boilerpipe Text	Key Takeaways Loss of smell, or anosmia, can happen for many reasons, including having COVID-19. Nasal sprays containing zinc can cause permanent loss of smell. Brain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia. A partial or total loss of smell—called anosmia—can happen for many reasons—including having COVID-19 . Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are losing their sense of taste . A loss of smell is most often temporary, depending on the cause. Maskot / Getty Images Anosmia Causes Many conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as Alzheimer's disease or Parkinson's disease . Some people are born with a diminished or heightened ability to smell as compared to others. In general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60. Studies also show that women tend to have a more accurate sense of smell than men. In addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition. COVID-19 and Loss of Smell The Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of COVID-19 infection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including how it's diagnosed and answers to common questions you may have. If you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances. The following conditions can cause anosmia that is often temporary or reversible: Allergies Congestion from colds or upper respiratory infections Dental problems or oral surgery Deviated septum Nasal polyps (often must be treated surgically) Sinusitis Temporary fluctuations in hormone levels Vitamin deficiencies or malnutrition (rare) The loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable. Medication side effects that cause loss of smell may be temporary or permanent, depending on the medication. Nasal Sprays and Loss of Smell Zinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well. The use of cocaine or other drugs that are snorted up the nose can also cause anosmia. Like smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return. The list of medications that may alter a person's ability to smell or taste is very long, but it includes many: Antibiotics Antidepressants Blood pressure medications Heart medications Associated Conditions Many conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not. Brain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including: Parkinson's disease Multiple sclerosis Alzheimer's disease Radiation treatment to the head and neck may also cause anosmia. Some other conditions that may cause anosmia include: Adrenocortical insufficiency syndrome Cerebral vascular accident (stroke) Cushing's syndrome Diabetes Epilepsy Kallmann's syndrome Hypothyroidism Psychiatric conditions Sjögren's disease Systemic lupus erythematosus Tumors of the brain, sinus cavities, or nose Turner syndrome Diagnosis Your healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam. If warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors. The Scratch-and-Sniff Test A healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells. Treatment As mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition. Nasal polyps or deviated septums can be treated surgically , sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications. If the anosmia is a side effect of a medication you are taking, the medication should be stopped. There is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually. When to See a Healthcare Provider Any unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms. Go to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness. 7 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Boyce JM, Shone GR. Effects of ageing on smell and taste . Postgrad Med J . 2006;82(966):239-41. doi:10.1136/pgmj.2005.039453 Sorokowski P, Karwowski M, Misiak M, et al. Sex differences in human olfaction: A meta-analysis . Front Psychol . 2019;10:242. doi:10.3389/fpsyg.2019.00242 Boesveldt S, Postma EM, Boak D, et al. Anosmia-a clinical review . Chem Senses . 2017;42(7):513-523. doi:10.1093/chemse/bjx025 Schiffman SS. Influence of medications on taste and smell . World J Otorhinolaryngol Head Neck Surg . 2018;4(1):84-91. doi:10.1016/j.wjorl.2018.02.005 Molteni M, Saibene AM, Luciano K, Maccari A. Snorting the clivus away: an extreme case of cocaine-induced midline destructive lesion . BMJ Case Rep . 2016;2016. doi:10.1136/bcr-2016-216393 Douglass R, Heckman G. Drug-related taste disturbance: a contributing factor in geriatric syndromes . Can Fam Physician . 2010;56(11):1142-7. Schofield PW, Moore TM, Gardner A. Traumatic brain injury and olfaction: a systematic review . Front Neurol . 2014;5:5. doi:10.3389/fneur.2014.00005 Additional Reading American Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste. American Family Physician. Smell and Taste Disorders: A Primary Approach. Medline Plus. Smell-impaired. NIH Senior Health. Problems with smell. By Kristin Hayes, RN Kristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children. 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Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Ⓒ 2026 People Inc. — All rights reserved # What Is Loss of Smell? Officially known as anosmia By [Kristin Hayes, RN](https://www.verywellhealth.com/kristin-hayes-rn-1191722) Updated on January 11, 2026 Medically reviewed by [Corinne Savides Happel, MD](https://www.verywellhealth.com/corinne-savides-happel-md-4781313) Table of Contents View All Table of Contents - [Causes](https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157#toc-anosmia-causes) - [Diagnosis](https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157#toc-diagnosis) - [Treatment](https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157#toc-treatment) - [When to See a Doctor](https://www.verywellhealth.com/am-i-losing-my-sense-of-smell-1192157#toc-when-to-see-a-healthcare-provider) ### Key Takeaways - Loss of smell, or anosmia, can happen for many reasons, including having COVID-19. - Nasal sprays containing zinc can cause permanent loss of smell. - Brain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia. A partial or total loss of smell—called anosmia—can happen for many reasons—including having [COVID-19](https://www.verywellhealth.com/coronavirus-overview-4783291). Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are [losing their sense of taste](https://www.verywellhealth.com/am-i-losing-my-sense-of-taste-1192002). A loss of smell is most often temporary, depending on the cause. ![Woman smelling leaves while sitting at table in perfume workshop]() ![Woman smelling leaves while sitting at table in perfume workshop](https://www.verywellhealth.com/thmb/GbnyzbWv_5fpecNT3lkFkk981E0=/1500x0/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/woman-smelling-leaves-while-sitting-at-table-in-perfume-workshop-953958166-e2334cddd1514d57bbf966a80675eb99.jpg) Maskot / Getty Images ## Anosmia Causes Many conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as [Alzheimer's disease](https://www.verywellhealth.com/alzheimers-4581763) or [Parkinson's disease](https://www.verywellhealth.com/parkinsons-overview-4581910). Some people are born with a diminished or heightened ability to smell as compared to others. In general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60. Studies also show that women tend to have a more accurate sense of smell than men. In addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition. ### COVID-19 and Loss of Smell The Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of [COVID-19](https://www.verywellhealth.com/coronavirus-overview-4783291) infection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including [how it's diagnosed](https://www.verywellhealth.com/when-to-test-for-covid-8422718) and answers to common questions you may have. If you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances. The following conditions can cause anosmia that is often temporary or reversible: - Allergies - Congestion from colds or upper respiratory infections - Dental problems or oral surgery - [Deviated septum](https://www.verywellhealth.com/what-causes-a-deviated-septum-7852960) - [Nasal polyps](https://www.verywellhealth.com/how-to-tell-if-you-have-nasal-polyps-5206960) (often must be treated surgically) - [Sinusitis](https://www.verywellhealth.com/sinus-infection-overview-83143) - Temporary fluctuations in hormone levels - Vitamin deficiencies or malnutrition (rare) The loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable. Medication side effects that cause loss of smell may be temporary or permanent, depending on the medication. ### Nasal Sprays and Loss of Smell Zinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well. The use of cocaine or other drugs that are snorted up the nose can also cause anosmia. Like smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return. The list of medications that may alter a person's ability to smell or taste is very long, but it includes many: - Antibiotics - Antidepressants - Blood pressure medications - Heart medications ### Associated Conditions Many conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not. Brain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including: - Parkinson's disease - [Multiple sclerosis](https://www.verywellhealth.com/multiple-sclerosis-overview-4581925) - Alzheimer's disease Radiation treatment to the head and neck may also cause anosmia. Some other conditions that may cause anosmia include: - Adrenocortical insufficiency syndrome - Cerebral vascular accident (stroke) - [Cushing's syndrome](https://www.verywellhealth.com/cushings-syndrome-overview-2616549) - Diabetes - Epilepsy - Kallmann's syndrome - [Hypothyroidism](https://www.verywellhealth.com/hypothyroidism-4013991) - Psychiatric conditions - [Sjögren's disease](https://www.verywellhealth.com/sjogrens-syndrome-facts-190388) - [Systemic lupus erythematosus](https://www.verywellhealth.com/lupus-8694321) - Tumors of the brain, sinus cavities, or nose - [Turner syndrome](https://www.verywellhealth.com/turner-syndrome-5025073) ## Diagnosis Your healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam. If warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors. ### The Scratch-and-Sniff Test A healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells. ## Treatment As mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition. Nasal polyps or deviated septums can be treated [surgically](https://www.verywellhealth.com/feeling-tired-after-surgery-3156867), sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications. If the anosmia is a side effect of a medication you are taking, the medication should be stopped. There is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually. ## When to See a Healthcare Provider Any unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms. Go to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness. Read more: - [Health A-Z](https://www.verywellhealth.com/health-a-z-4014770) - [Ear, Nose & Throat](https://www.verywellhealth.com/ear-nose-throat-4014732) - [ENT Disorders](https://www.verywellhealth.com/ent-disorders-a-z-4014008) 7 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our [editorial process](https://www.verywellhealth.com/verywell-editorial-process-4777042) to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. 1. Boyce JM, Shone GR. [Effects of ageing on smell and taste](https://doi.org/10.1136/pgmj.2005.039453). Postgrad Med J. 2006;82(966):239-41. doi:10.1136/pgmj.2005.039453 2. Sorokowski P, Karwowski M, Misiak M, et al. [Sex differences in human olfaction: A meta-analysis](https://doi.org/10.3389/fpsyg.2019.00242). Front Psychol. 2019;10:242. doi:10.3389/fpsyg.2019.00242 3. Boesveldt S, Postma EM, Boak D, et al. [Anosmia-a clinical review](https://doi.org/10.1093/chemse/bjx025). Chem Senses. 2017;42(7):513-523. doi:10.1093/chemse/bjx025 4. Schiffman SS. [Influence of medications on taste and smell](https://doi.org/10.1016/j.wjorl.2018.02.005). World J Otorhinolaryngol Head Neck Surg. 2018;4(1):84-91. doi:10.1016/j.wjorl.2018.02.005 5. Molteni M, Saibene AM, Luciano K, Maccari A. [Snorting the clivus away: an extreme case of cocaine-induced midline destructive lesion](https://doi.org/10.1136/bcr-2016-216393). BMJ Case Rep. 2016;2016. doi:10.1136/bcr-2016-216393 6. Douglass R, Heckman G. [Drug-related taste disturbance: a contributing factor in geriatric syndromes](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2980431/#__ffn_sectitle). Can Fam Physician. 2010;56(11):1142-7. 7. Schofield PW, Moore TM, Gardner A. [Traumatic brain injury and olfaction: a systematic review](https://doi.org/10.3389/fneur.2014.00005). Front Neurol. 2014;5:5. doi:10.3389/fneur.2014.00005 Additional Reading - American Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste. - American Family Physician. Smell and Taste Disorders: A Primary Approach. - Medline Plus. Smell-impaired. - NIH Senior Health. Problems with smell. ![Kristin Hayes]() ![Kristin Hayes](https://www.verywellhealth.com/thmb/Wk8yKrW2qB5d7IWKK5L4jnhwPN0=/144x144/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/KristinHayes-1000-1a35767549884928b0dd90a19a2be0ed.jpg) By [Kristin Hayes, RN](https://www.verywellhealth.com/kristin-hayes-rn-1191722) Kristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children. [See Our Editorial Process](https://www.verywellhealth.com/verywell-editorial-process-4777042) [Meet Our Medical Expert Board](https://www.verywellhealth.com/meet-our-medical-expert-board-11762003) Share Feedback Was this page helpful? Thanks for your feedback\! 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Readable Markdown	### Key Takeaways - Loss of smell, or anosmia, can happen for many reasons, including having COVID-19. - Nasal sprays containing zinc can cause permanent loss of smell. - Brain injuries and disorders like Alzheimer's and Parkinson's diseases may cause anosmia. A partial or total loss of smell—called anosmia—can happen for many reasons—including having [COVID-19](https://www.verywellhealth.com/coronavirus-overview-4783291). Loss of smell can also affect your sense of taste. In fact, the two senses are so closely connected that people who are losing their sense of smell often mistakenly believe they are [losing their sense of taste](https://www.verywellhealth.com/am-i-losing-my-sense-of-taste-1192002). A loss of smell is most often temporary, depending on the cause. Maskot / Getty Images ## Anosmia Causes Many conditions can temporarily or permanently cause anosmia. More rarely, a decreased sense of smell can signal the start of a serious condition such as [Alzheimer's disease](https://www.verywellhealth.com/alzheimers-4581763) or [Parkinson's disease](https://www.verywellhealth.com/parkinsons-overview-4581910). Some people are born with a diminished or heightened ability to smell as compared to others. In general, our ability to smell may wax and wane over our lifetime, and most of us begin to lose our sense of smell after the age of 60. Studies also show that women tend to have a more accurate sense of smell than men. In addition to a diminished sense of smell and taste, people who suffer from anosmia may also have other symptoms, depending on the cause of their anosmia. These symptoms vary widely. You should report any unusual symptoms to your healthcare provider, even if you don't think they're relevant, since they may indicate an underlying condition. ### COVID-19 and Loss of Smell The Centers for Disease Control and Prevention (CDC) says loss of smell—or anosmia—may be a sign of [COVID-19](https://www.verywellhealth.com/coronavirus-overview-4783291) infection. If you suspect you or a loved one may be sick, contact your healthcare provider. Learn more about COVID-19, including [how it's diagnosed](https://www.verywellhealth.com/when-to-test-for-covid-8422718) and answers to common questions you may have. If you're concerned that you may be losing your sense of smell, it's likely you have a common and temporary condition. Keep in mind that each individual and case is different, so whether or not your diminished sense of smell persists will depend on your individual circumstances. The following conditions can cause anosmia that is often temporary or reversible: - Allergies - Congestion from colds or upper respiratory infections - Dental problems or oral surgery - [Deviated septum](https://www.verywellhealth.com/what-causes-a-deviated-septum-7852960) - [Nasal polyps](https://www.verywellhealth.com/how-to-tell-if-you-have-nasal-polyps-5206960) (often must be treated surgically) - [Sinusitis](https://www.verywellhealth.com/sinus-infection-overview-83143) - Temporary fluctuations in hormone levels - Vitamin deficiencies or malnutrition (rare) The loss of smell due to some conditions or risk factors may be reversible, partially reversible, or permanent. For example, once a person quits smoking, their sense of smell usually improves—but how much the ability to smell returns is variable. Medication side effects that cause loss of smell may be temporary or permanent, depending on the medication. ### Nasal Sprays and Loss of Smell Zinc nasal sprays are known to cause permanent anosmia. Breathing in chemicals or environmental pollutants has been known to cause permanent anosmia as well. The use of cocaine or other drugs that are snorted up the nose can also cause anosmia. Like smoking, a person's ability to smell may or may not return when the drug is stopped or may only partially return. The list of medications that may alter a person's ability to smell or taste is very long, but it includes many: - Antibiotics - Antidepressants - Blood pressure medications - Heart medications ### Associated Conditions Many conditions often cause a permanent loss of a person's sense of smell. Again, keep in mind that each case is different, and some people may regain their sense of smell even with these conditions, though many do not. Brain injuries (head trauma) may cause anosmia, as can disorders that affect the nervous system, including: - Parkinson's disease - [Multiple sclerosis](https://www.verywellhealth.com/multiple-sclerosis-overview-4581925) - Alzheimer's disease Radiation treatment to the head and neck may also cause anosmia. Some other conditions that may cause anosmia include: - Adrenocortical insufficiency syndrome - Cerebral vascular accident (stroke) - [Cushing's syndrome](https://www.verywellhealth.com/cushings-syndrome-overview-2616549) - Diabetes - Epilepsy - Kallmann's syndrome - [Hypothyroidism](https://www.verywellhealth.com/hypothyroidism-4013991) - Psychiatric conditions - [Sjögren's disease](https://www.verywellhealth.com/sjogrens-syndrome-facts-190388) - [Systemic lupus erythematosus](https://www.verywellhealth.com/lupus-8694321) - Tumors of the brain, sinus cavities, or nose - [Turner syndrome](https://www.verywellhealth.com/turner-syndrome-5025073) ## Diagnosis Your healthcare provider will review your medical history as well as any current symptoms you might be having. Your practitioner will probably also perform a physical exam. If warranted, a healthcare provider will order blood tests to rule out risk factors, such as infections or hormonal disturbances, or a computerized tomography (CT) scan or magnetic resonance imaging (MRI) to diagnose nasal polyps or tumors. ### The Scratch-and-Sniff Test A healthcare provider may administer a scratch-and-sniff test where you will be asked to identify certain smells. ## Treatment As mentioned above, many conditions that can diminish your sense of smell are reversible, but it depends on the root cause of your condition. Nasal polyps or deviated septums can be treated [surgically](https://www.verywellhealth.com/feeling-tired-after-surgery-3156867), sinusitis can sometimes be treated with antibiotics, and allergies can be treated with medications. If the anosmia is a side effect of a medication you are taking, the medication should be stopped. There is no medication or treatment specifically designed to improve or bring back your sense of smell, but finding the cause of the anosmia and resolving the underlying issue is successful in many cases. In some cases, the sense of smell may return gradually. ## When to See a Healthcare Provider Any unexplained loss of smell that lasts longer than a cold virus probably should be checked out by a healthcare provider. Call your practitioner immediately if your inability to smell comes on suddenly and is accompanied by other worrisome or strange symptoms. Go to the emergency room if you lose your sense of smell and experience neurological symptoms such as dizziness, slurred speech, or muscle weakness. 7 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our [editorial process](https://www.verywellhealth.com/verywell-editorial-process-4777042) to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. 1. Boyce JM, Shone GR. [Effects of ageing on smell and taste](https://doi.org/10.1136/pgmj.2005.039453). Postgrad Med J. 2006;82(966):239-41. doi:10.1136/pgmj.2005.039453 2. Sorokowski P, Karwowski M, Misiak M, et al. [Sex differences in human olfaction: A meta-analysis](https://doi.org/10.3389/fpsyg.2019.00242). Front Psychol. 2019;10:242. doi:10.3389/fpsyg.2019.00242 3. Boesveldt S, Postma EM, Boak D, et al. [Anosmia-a clinical review](https://doi.org/10.1093/chemse/bjx025). Chem Senses. 2017;42(7):513-523. doi:10.1093/chemse/bjx025 4. Schiffman SS. [Influence of medications on taste and smell](https://doi.org/10.1016/j.wjorl.2018.02.005). World J Otorhinolaryngol Head Neck Surg. 2018;4(1):84-91. doi:10.1016/j.wjorl.2018.02.005 5. Molteni M, Saibene AM, Luciano K, Maccari A. [Snorting the clivus away: an extreme case of cocaine-induced midline destructive lesion](https://doi.org/10.1136/bcr-2016-216393). BMJ Case Rep. 2016;2016. doi:10.1136/bcr-2016-216393 6. Douglass R, Heckman G. [Drug-related taste disturbance: a contributing factor in geriatric syndromes](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2980431/#__ffn_sectitle). Can Fam Physician. 2010;56(11):1142-7. 7. Schofield PW, Moore TM, Gardner A. [Traumatic brain injury and olfaction: a systematic review](https://doi.org/10.3389/fneur.2014.00005). Front Neurol. 2014;5:5. doi:10.3389/fneur.2014.00005 Additional Reading - American Academy of Otolaryngology - Head and Neck Surgery. Smell and Taste. - American Family Physician. Smell and Taste Disorders: A Primary Approach. - Medline Plus. Smell-impaired. - NIH Senior Health. Problems with smell. ![Kristin Hayes](https://www.verywellhealth.com/thmb/Wk8yKrW2qB5d7IWKK5L4jnhwPN0=/144x144/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/KristinHayes-1000-1a35767549884928b0dd90a19a2be0ed.jpg) By [Kristin Hayes, RN](https://www.verywellhealth.com/kristin-hayes-rn-1191722) Kristin Hayes, RN, is a registered nurse specializing in ear, nose, and throat disorders for both adults and children. Was this page helpful? Thanks for your feedback\! What is your feedback?
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