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| URL | https://www.healthline.com/health/schizophrenia |
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| Meta Title | Schizophrenia: Symptoms, Causes, Treatment, and Prognosis |
| Meta Description | We explain everything you need to know about schizophrenia, including its early symptoms, complications, treatments, and more. |
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| Boilerpipe Text | People with schizophrenia experience distortions of reality, often in the form of delusions or hallucinations.
Although exact estimates are difficult to obtain, researchers estimate that schizophrenia affects less than
1%
of the global population.
Misconceptions about this disorder are common. For example, some people think schizophrenia creates a “split personality.” In fact, schizophrenia and split personality — properly termed
dissociative identity disorder
— are two different disorders.
Schizophrenia can occur in people of all ages. According to the
American Psychiatric Association
, men often develop symptoms in their late teens or early 20s. Women tend to show signs in their late 20s and early 30s. A
2022 report
states that young men with cannabis use disorder are at the highest risk of developing schizophrenia.
Here’s what you need to know about this mental health condition.
Early symptoms
Symptoms of this disorder commonly appear in the teenage years and early 20s. At these ages, the earliest symptoms may get overlooked because they mirror certain “typical” adolescent behaviors.
Early symptoms can include:
isolating oneself from friends and family
changing friends or social groups
a change in focus and concentration
sleeping problems
irritability and agitation
difficulties with schoolwork, or low academic performance
anxiety
vague suspiciousness
odd ideas
feeling different from others
When it comes to more advanced symptoms, these tend to fall into three distinct categories: positive symptoms, negative symptoms, and cognitive symptoms.
The terms “positive” and “negative” have different connotations here: “Positive” symptoms mean added thoughts or actions to one’s typical experience. “Negative” symptoms are the absence of typical behaviors.
Positive symptoms
Positive symptoms of schizophrenia aren’t typical in individuals without schizophrenia or other types of severe mental illness. These behaviors include:
Hallucinations:
Hallucinations
are experiences that appear real but are created by your mind. They include seeing things, hearing voices, or smelling things that others around you don’t experience.
Delusions:
A delusion occurs when you believe something despite evidence or facts to the contrary.
Paranoia:
Paranoia is when someone is unusually distrustful of others or firmly believes they are being followed or persecuted.
Negative symptoms
Negative symptoms of schizophrenia interrupt a person’s typical emotions, behaviors, and abilities. These symptoms include:
reduction in speaking
odd emotional responses to situations
a lack of emotion or expressions
loss of interest or excitement for life
social isolation
trouble experiencing pleasure
difficulty beginning or following through with plans
difficulty completing normal everyday activities
Cognitive symptoms
Cognitive symptoms are labeled as such because they illustrate that someone is having trouble with certain mental functions. These symptoms include:
disorganized thinking or speech, such as when a person changes topics rapidly when speaking or uses made-up words or phrases
forgetfulness
disorganized thinking, such as trouble focusing or paying attention
impaired “executive functioning,” or understanding information and using it to make decisions
problems learning information and using it
Symptoms of schizophrenia can vary in severity and type. They may worsen if an individual is experiencing heightened stress, using substances, or is not taking their prescribed medications correctly.
The exact cause of schizophrenia is unknown. Medical researchers believe several factors can contribute, including:
biological
genetic
environmental
Research
suggests that imaging tests completed on people with schizophrenia may show abnormalities in certain brain structures.
Risk factors
Even though it’s still not known what causes schizophrenia, researchers believe genetics may play a role. People with a family history of schizophrenia have a
higher risk
of developing this disorder.
Other risk factors for schizophrenia may
include
:
having exposure to toxins, a virus, or malnutrition before birth or during infancy
using mind-altering drugs
living in a highly stressful situation
taking mind-altering drugs in adolescence or young adulthood
Schizophrenia is a serious mental illness that should not be ignored or left untreated. The condition increases the risk of serious complications, such as:
self-injury or suicide
anxiety
phobias
depression
alcohol or drug misuse
family problems
Schizophrenia can also make it difficult to work or attend school. If you can’t work or support yourself financially, there’s a higher risk of a lower quality of life.
There isn’t a single test to diagnose schizophrenia. A complete psychiatric exam can help healthcare professionals make a diagnosis. A psychiatrist or mental health professional can do this.
At your appointment, expect to answer questions about your:
medical history
mental health
family medical history
Your healthcare professional may conduct the following:
a physical exam
blood work
imaging tests, including an
MRI
or
CT scan
Sometimes, there can be other reasons for your symptoms, even though they may be similar to those of schizophrenia. These reasons may include:
substance use
certain medications
other mental health conditions
Your healthcare team may diagnose schizophrenia if you’ve had at least two symptoms for a 1-month period. These symptoms must include:
hallucinations
delusions
disorganized speech
There’s
no cure for schizophrenia
. Current treatments focus on managing or reducing the severity of symptoms.
It’s important to get treatment from a psychiatrist or mental health professional who has experience treating people with this disorder. You may also work with a social worker or a case manager, too.
Possible treatments include the following:
Medications
hallucinations
delusions
Psychosocial intervention
Another treatment option for schizophrenia is psychosocial intervention. This includes individual therapy to help you cope with stress and your diagnosis.
Social training can improve your social and communication skills.
Vocational rehabilitation
Vocational rehabilitation can provide you with the skills you need to return to work. It may make maintaining a regular job easier.
Family support and education
If you or someone you care about has received a diagnosis of schizophrenia, having support from family and friends can help lower stress and create a feeling of inclusion. There are educational programs available for family members that can help everyone spot the symptoms and provide support when needed.
A diagnosis of schizophrenia is common in people in their teens and early 20s. Although less common, it can begin earlier. When symptoms occur before age 13 years, the condition is sometimes called early onset or
childhood schizophrenia
.
Diagnosing this condition is difficult. Behavior changes aren’t unusual as children and teens develop. Plus, some of the most common symptoms of this mental health disorder also show up in other conditions. These include:
depression
bipolar disorder
attention disorders
Symptoms of childhood schizophrenia include:
unusual fears or anxieties (paranoia)
sleeping problems
mood changes
hearing voices or seeing things (hallucinations)
decreased attention to self-care
sudden changes in behavior
deterioration in academic performance
odd beliefs or thinking
It’s important to separate the behaviors that may occur in growing children and teenagers with symptoms of a serious mental health condition.
However, if you are concerned that your child has acquired some new, worrying behaviors, it’s essential to talk with a mental health professional as soon as you can.
No matter what the issue is, a professional can support you to make the best decision for your family.
Schizophrenia and
psychosis
may be confused with one another, but they’re not the same. One is a mental health condition, and the other is a symptom or group of symptoms.
Psychosis is one element or symptom of several mental health disorders, including schizophrenia. Psychosis can also occur in people with no other mental health symptoms.
Although psychosis can occur in people with schizophrenia, not everyone with this disorder will experience psychosis. If you or someone you know is experiencing symptoms of psychosis, seek treatment immediately.
Schizophrenia and
bipolar disorder
are both chronic mental health conditions. They may share some characteristics, but there are distinct differences.
Bipolar disorder causes strong mood changes. These changes switch between
mania
and
depression
.
During these
episodes
, it’s possible that someone with bipolar disorder will experience hallucinations or delusions, especially in a manic episode. Experiencing
psychosis
along with mood changes may make completing everyday tasks harder.
Likewise, people with schizophrenia may experience hallucinations or delusions, but they’re also very likely to experience disorganized thinking and speech. Unlike someone with bipolar disorder during a manic episode, the symptoms of psychosis aren’t accompanied by mania.
No medical test can determine which condition you have. Instead, your healthcare professional may refer you to a mental health professional who will perform a comprehensive psychiatric evaluation and order some tests to help rule out possible medical causes. These tests could include blood tests, imaging tests, and drug screening tests.
While a schizophrenia diagnosis can come with an increased risk of mortality due to co-occurring conditions and the risk of suicide, proper treatment can help an individual live a productive and happy life.
Like many chronic conditions, a person’s outlook depends on a lot of personal factors, including how early a diagnosis was made, how much an individual is able and willing to follow a treatment plan, and their support system.
Schizophrenia is typically diagnosed in people in their
late teens to early 30s
.
Men tend to show symptoms earlier, and cannabis use disorder
may be
a contributing factor. Men also receive a diagnosis earlier than others, between
late adolescence and their early 20s
.
Women tend to receive a diagnosis later than men, from their
early 20s to early 30s
.
Research suggests that schizophrenia occurs in
less than 1%
of people. It affects
more than 24 million
people around the world.
Worldwide, schizophrenia is
one of the top
causes of disability.
Almost half
of people with schizophrenia also have other mental health issues.
There’s no real way to prevent schizophrenia. Still, identifying who’s at risk and how to prevent the disorder from occurring in at-risk individuals has been an important focus of researchers in recent years.
According to the World Health Organization (WHO),
at least one-third
of people with schizophrenia experience a complete remission of symptoms. To get on the road to improvement, it’s important to:
learn about your condition
understand the risk factors
follow your healthcare team’s treatment plan
Schizophrenia symptoms can go away for a while and then return, but it’s possible to enjoy a healthy, symptom-free life. Following your healthcare professional’s recommendations will improve your outlook. |
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Explore more in
- Related Conditions
- Types
- Symptoms
- Causes & Risk Factors
- Management
- Treatment
- Diagnosis
- Complications
- Prognosis
Schizophrenia
#### Related Hubs
[Mental Well-Being A holistic guide to care](https://www.healthline.com/mental-health)
#### Related Topics
- ### Related Conditions
Related Conditions
#### Related Articles
- [Vs. Bipolar Disorder](https://www.healthline.com/health/bipolar-disorder/bipolar-vs-schizophrenia)
- [Vs. Borderline Personality Disorder](https://www.healthline.com/health/schizophrenia/borderline-personality-disorder-and-schizophrenia)
- [Vs. Delusional Disorder](https://www.healthline.com/health/schizophrenia/delusional-disorder-vs-schizophrenia)
- [Vs. Dissociative Identity Disorder (DID)](https://www.healthline.com/health/schizophrenia/did-vs-schizophrenia)
- [Related Conditions](https://www.healthline.com/health/schizophrenia/is-schizophrenia-a-personality-disorder)
- [Vs. Psychosis](https://www.healthline.com/health/schizophrenia/psychosis-vs-schizophrenia)
- [Vs. Schizoaffective Disorder](https://www.healthline.com/health/schizophrenia/schizoaffective-disorder-vs-schizophrenia)
- [Vs. Anxiety](https://www.healthline.com/health/schizophrenia/schizophrenia-and-anxiety)
- ### Types
Types
#### Related Articles
- [Bipolar Schizoaffective Disorder](https://www.healthline.com/health/bipolar-schizoaffective-disorder)
- [Catatonic Schizophrenia](https://www.healthline.com/health/catatonic-schizophrenia)
- [High Functioning Schizophrenia](https://www.healthline.com/health/high-functioning-schizophrenia)
- [Types](https://www.healthline.com/health/schizophrenia-types)
- [Acute Schizophrenia](https://www.healthline.com/health/schizophrenia/acute-schizophrenia)
- [Without Hallucinations](https://www.healthline.com/health/schizophrenia/can-you-have-schizophrenia-without-hallucinations)
- [Cenesthopathic](https://www.healthline.com/health/schizophrenia/cenesthopathic-schizophrenia)
- [Disorganized (Hebephrenic) Schizophrenia](https://www.healthline.com/health/schizophrenia/disorganized-hebephrenic-schizophrenia)
- [In Females](https://www.healthline.com/health/schizophrenia/female-schizophrenia)
- [Paranoid Schizophrenia](https://www.healthline.com/health/schizophrenia/paranoid-schizophrenia)
- [Schizophreniform Disorder](https://www.healthline.com/health/schizophrenia/schizophreniform)
- ### Symptoms
Symptoms
#### Related Articles
- [Early Signs](https://www.healthline.com/health/early-signs-of-schizophrenia)
- [Hallucinations vs. Delusions](https://www.healthline.com/health/mental-health/hallucinations-vs-delusions)
- [Hearing Voices](https://www.healthline.com/health/mental-health/i-hear-voices-in-my-head)
- [Phases](https://www.healthline.com/health/mental-health/phases-of-schizophrenia)
- [Hallucinations](https://www.healthline.com/health/schizophrenia-hallucinations)
- [Symptoms](https://www.healthline.com/health/schizophrenia/symptoms)
- [Types of Delusions](https://www.healthline.com/health/schizophrenia/types-of-delusions-in-schizophrenia)
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- ### Causes & Risk Factors
Causes & Risk Factors
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- [Dopamine](https://www.healthline.com/health/schizophrenia/schizophrenia-and-dopamine)
- ### Management
Management
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- [Management](https://www.healthline.com/health/schizophrenia/alternative-treatments)
- [Supporting a Loved One](https://www.healthline.com/health/schizophrenia/how-to-help-someone-with-schizophrenia)
- [Sleep](https://www.healthline.com/health/schizophrenia/schizophrenia-and-sleep)
- [Employment](https://www.healthline.com/health/schizophrenia/what-is-a-good-job-for-someone-with-schizophrenia)
- ### Treatment
Treatment
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- [Electroconvulsive Therapy](https://www.healthline.com/health/schizophrenia/ect-for-schizophrenia)
- [Art Therapy](https://www.healthline.com/health/schizophrenia/schizophrenia-art)
- [Injections](https://www.healthline.com/health/schizophrenia/schizophrenia-injection)
- ### Diagnosis
Diagnosis
#### Related Articles
- [Clock Drawing Test](https://www.healthline.com/health/schizophrenia/clock-drawing-test-schizophrenia)
- [Diagnosis](https://www.healthline.com/health/schizophrenia/how-is-schizophrenia-diagnosed)
- [Lab Tests](https://www.healthline.com/health/schizophrenia/laboratory-tests-for-schizophrenia)
- [Age of Onset](https://www.healthline.com/health/schizophrenia/schizophrenia-age-of-onset)
- [Brain Imaging](https://www.healthline.com/health/schizophrenia/schizophrenia-brain-scan)
- ### Complications
Complications
#### Related Articles
- [Dementia Risk](https://www.healthline.com/health/schizophrenia/schizophrenia-and-dementia)
- [Eye Changes](https://www.healthline.com/health/schizophrenia/schizophrenia-eyes)
- [Suicide Risk](https://www.healthline.com/health/schizophrenia/suicide-in-schizophrenia)
- ### Prognosis
Prognosis
#### Related Articles
- [Outlook](https://www.healthline.com/health/schizophrenia/schizophrenia-life-expectancy)
# What Do You Want to Know About Schizophrenia?

[Medically reviewed]() by [Yalda Safai, MD, MPH]() — Written by [Valencia Higuera]() — [Updated on May 19, 2025]()
- [Symptoms](https://www.healthline.com/health/schizophrenia#symptoms)
- [Causes](https://www.healthline.com/health/schizophrenia#causes)
- [Complications](https://www.healthline.com/health/schizophrenia#complications)
- [Diagnosis](https://www.healthline.com/health/schizophrenia#diagnosis)
- [Treatments](https://www.healthline.com/health/schizophrenia#treatments)
- [In children](https://www.healthline.com/health/schizophrenia#in-children)
- [Vs. psychosis](https://www.healthline.com/health/schizophrenia#vs-psychosis)
- [Vs. bipolar disorder](https://www.healthline.com/health/schizophrenia#vs-bipolar-disorder)
- [Prognosis](https://www.healthline.com/health/schizophrenia#prognosis)
- [Statistics](https://www.healthline.com/health/schizophrenia#statistics)
- [Prevention](https://www.healthline.com/health/schizophrenia#prevention)
- [Takeaway](https://www.healthline.com/health/schizophrenia#takeaway)
### Key takeaways
- Schizophrenia is a chronic mental health condition affecting less than 1% of the global population, with males typically showing symptoms in their late teens or early 20s and females in their late 20s or early 30s.
- Common symptoms include hallucinations, delusions, paranoia, reduction in speaking, social isolation, and difficulty completing normal everyday activities.
- While there’s no cure for schizophrenia, treatments include medications, psychosocial intervention, and vocational rehabilitation to help manage symptoms.
People with schizophrenia experience distortions of reality, often in the form of delusions or hallucinations.
Although exact estimates are difficult to obtain, researchers estimate that schizophrenia affects less than [1%](https://www.nimh.nih.gov/health/statistics/schizophrenia) of the global population.
Misconceptions about this disorder are common. For example, some people think schizophrenia creates a “split personality.” In fact, schizophrenia and split personality — properly termed [dissociative identity disorder](https://www.healthline.com/health/dissociative-identity-disorder) — are two different disorders.
Schizophrenia can occur in people of all ages. According to the [American Psychiatric Association](https://www.psychiatry.org/patients-families/schizophrenia/what-is-schizophrenia), men often develop symptoms in their late teens or early 20s. Women tend to show signs in their late 20s and early 30s. A [2022 report](https://www.nih.gov/news-events/news-releases/young-men-highest-risk-schizophrenia-linked-cannabis-use-disorder) states that young men with cannabis use disorder are at the highest risk of developing schizophrenia.
Here’s what you need to know about this mental health condition.
## [Symptoms of schizophrenia]()
[Symptoms of schizophrenia](https://www.healthline.com/health/schizophrenia/symptoms) may include the following:
### Early symptoms
Symptoms of this disorder commonly appear in the teenage years and early 20s. At these ages, the earliest symptoms may get overlooked because they mirror certain “typical” adolescent behaviors.
Early symptoms can include:
- isolating oneself from friends and family
- changing friends or social groups
- a change in focus and concentration
- sleeping problems
- irritability and agitation
- difficulties with schoolwork, or low academic performance
- anxiety
- vague suspiciousness
- odd ideas
- feeling different from others
When it comes to more advanced symptoms, these tend to fall into three distinct categories: positive symptoms, negative symptoms, and cognitive symptoms.
The terms “positive” and “negative” have different connotations here: “Positive” symptoms mean added thoughts or actions to one’s typical experience. “Negative” symptoms are the absence of typical behaviors.
### Positive symptoms
Positive symptoms of schizophrenia aren’t typical in individuals without schizophrenia or other types of severe mental illness. These behaviors include:
- **Hallucinations:** [Hallucinations](https://www.healthline.com/health/hallucinations) are experiences that appear real but are created by your mind. They include seeing things, hearing voices, or smelling things that others around you don’t experience.
- **Delusions:** A delusion occurs when you believe something despite evidence or facts to the contrary.
- **Paranoia:** Paranoia is when someone is unusually distrustful of others or firmly believes they are being followed or persecuted.
### Negative symptoms
Negative symptoms of schizophrenia interrupt a person’s typical emotions, behaviors, and abilities. These symptoms include:
- reduction in speaking
- odd emotional responses to situations
- a lack of emotion or expressions
- loss of interest or excitement for life
- social isolation
- trouble experiencing pleasure
- difficulty beginning or following through with plans
- difficulty completing normal everyday activities
### Cognitive symptoms
Cognitive symptoms are labeled as such because they illustrate that someone is having trouble with certain mental functions. These symptoms include:
- disorganized thinking or speech, such as when a person changes topics rapidly when speaking or uses made-up words or phrases
- forgetfulness
- disorganized thinking, such as trouble focusing or paying attention
- impaired “executive functioning,” or understanding information and using it to make decisions
- problems learning information and using it
Symptoms of schizophrenia can vary in severity and type. They may worsen if an individual is experiencing heightened stress, using substances, or is not taking their prescribed medications correctly.
## [Schizophrenia causes]()
The exact cause of schizophrenia is unknown. Medical researchers believe several factors can contribute, including:
- biological
- genetic
- environmental
[Research](https://pmc.ncbi.nlm.nih.gov/articles/PMC7724147/) suggests that imaging tests completed on people with schizophrenia may show abnormalities in certain brain structures.
### Risk factors
Even though it’s still not known what causes schizophrenia, researchers believe genetics may play a role. People with a family history of schizophrenia have a [higher risk](https://www.ncbi.nlm.nih.gov/books/NBK539864/) of developing this disorder.
Other risk factors for schizophrenia may [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/):
- having exposure to toxins, a virus, or malnutrition before birth or during infancy
- using mind-altering drugs
- living in a highly stressful situation
- taking mind-altering drugs in adolescence or young adulthood
## [Schizophrenia complications]()
Schizophrenia is a serious mental illness that should not be ignored or left untreated. The condition increases the risk of serious complications, such as:
- self-injury or suicide
- [anxiety](https://www.healthline.com/health/anxiety-symptoms)
- [phobias](https://www.healthline.com/health/phobia-simple-specific)
- [depression](https://www.healthline.com/health/depression)
- alcohol or drug misuse
- family problems
Schizophrenia can also make it difficult to work or attend school. If you can’t work or support yourself financially, there’s a higher risk of a lower quality of life.
## [Schizophrenia diagnosis and tests]()
There isn’t a single test to diagnose schizophrenia. A complete psychiatric exam can help healthcare professionals make a diagnosis. A psychiatrist or mental health professional can do this.
At your appointment, expect to answer questions about your:
- medical history
- mental health
- family medical history
Your healthcare professional may conduct the following:
- a physical exam
- blood work
- imaging tests, including an [MRI](https://www.healthline.com/health/head-mri) or [CT scan](https://www.healthline.com/health/cranial-ct-scan)
Sometimes, there can be other reasons for your symptoms, even though they may be similar to those of schizophrenia. These reasons may include:
- substance use
- certain medications
- other mental health conditions
Your healthcare team may diagnose schizophrenia if you’ve had at least two symptoms for a 1-month period. These symptoms must include:
- hallucinations
- delusions
- disorganized speech
## [Schizophrenia treatments]()
There’s [no cure for schizophrenia](https://www.healthline.com/health/schizophrenia/can-schizophrenia-be-cured). Current treatments focus on managing or reducing the severity of symptoms.
It’s important to get treatment from a psychiatrist or mental health professional who has experience treating people with this disorder. You may also work with a social worker or a case manager, too.
Possible treatments include the following:
### Medications
Antipsychotic medication is the most common [treatment for schizophrenia](https://www.healthline.com/health/mental-health/schizophrenia-treatment). Medication can help manage:
- hallucinations
- delusions
### Psychosocial intervention
Another treatment option for schizophrenia is psychosocial intervention. This includes individual therapy to help you cope with stress and your diagnosis.
Social training can improve your social and communication skills.
### Vocational rehabilitation
Vocational rehabilitation can provide you with the skills you need to return to work. It may make maintaining a regular job easier.
### Family support and education
If you or someone you care about has received a diagnosis of schizophrenia, having support from family and friends can help lower stress and create a feeling of inclusion. There are educational programs available for family members that can help everyone spot the symptoms and provide support when needed.
A good place to start is the National Alliance on Mental Illness’s [support and education page](https://www.nami.org/Support-Education).
## [Childhood schizophrenia]()
A diagnosis of schizophrenia is common in people in their teens and early 20s. Although less common, it can begin earlier. When symptoms occur before age 13 years, the condition is sometimes called early onset or [childhood schizophrenia](https://www.healthline.com/health/understanding-schizophrenia).
Diagnosing this condition is difficult. Behavior changes aren’t unusual as children and teens develop. Plus, some of the most common symptoms of this mental health disorder also show up in other conditions. These include:
- [depression](https://www.healthline.com/health/adolescent-depression)
- [bipolar disorder](https://www.healthline.com/health/bipolar-disorder/bipolar-vs-schizophrenia)
- [attention disorders](https://www.healthline.com/health/adhd/adhd-misdiagnosis)
Symptoms of childhood schizophrenia include:
- unusual fears or anxieties (paranoia)
- sleeping problems
- mood changes
- hearing voices or seeing things (hallucinations)
- decreased attention to self-care
- sudden changes in behavior
- deterioration in academic performance
- odd beliefs or thinking
It’s important to separate the behaviors that may occur in growing children and teenagers with symptoms of a serious mental health condition.
However, if you are concerned that your child has acquired some new, worrying behaviors, it’s essential to talk with a mental health professional as soon as you can.
No matter what the issue is, a professional can support you to make the best decision for your family.
## [Schizophrenia vs. psychosis]()
Schizophrenia and [psychosis](https://www.healthline.com/health/psychosis) may be confused with one another, but they’re not the same. One is a mental health condition, and the other is a symptom or group of symptoms.
Psychosis is one element or symptom of several mental health disorders, including schizophrenia. Psychosis can also occur in people with no other mental health symptoms.
Although psychosis can occur in people with schizophrenia, not everyone with this disorder will experience psychosis. If you or someone you know is experiencing symptoms of psychosis, seek treatment immediately.
## [Schizophrenia vs. bipolar disorder]()
Schizophrenia and [bipolar disorder](https://www.healthline.com/health/bipolar-disorder) are both chronic mental health conditions. They may share some characteristics, but there are distinct differences.
Bipolar disorder causes strong mood changes. These changes switch between [mania](https://www.healthline.com/health/what-a-bipolar-manic-episode-feels-like) and [depression](https://www.healthline.com/health/bipolar-disorder/depression).
During these [episodes](https://www.healthline.com/health/bipolar-disorder/episodes), it’s possible that someone with bipolar disorder will experience hallucinations or delusions, especially in a manic episode. Experiencing [psychosis](https://www.healthline.com/health/bipolar-disorder/bipolar-psychosis) along with mood changes may make completing everyday tasks harder.
Likewise, people with schizophrenia may experience hallucinations or delusions, but they’re also very likely to experience disorganized thinking and speech. Unlike someone with bipolar disorder during a manic episode, the symptoms of psychosis aren’t accompanied by mania.
No medical test can determine which condition you have. Instead, your healthcare professional may refer you to a mental health professional who will perform a comprehensive psychiatric evaluation and order some tests to help rule out possible medical causes. These tests could include blood tests, imaging tests, and drug screening tests.
## [Schizophrenia prognosis]()
While a schizophrenia diagnosis can come with an increased risk of mortality due to co-occurring conditions and the risk of suicide, proper treatment can help an individual live a productive and happy life.
Like many chronic conditions, a person’s outlook depends on a lot of personal factors, including how early a diagnosis was made, how much an individual is able and willing to follow a treatment plan, and their support system.
### Help is out there
If you or someone you know is in crisis and considering suicide or self-harm, please seek support:
- Call or text the [988 Suicide and Crisis Lifeline](https://988lifeline.org/) at 988 or chat at [988lifeline.org](http://www.988lifeline.org/). Caring counselors are available to listen and provide free and confidential support 24/7.
- Text HOME to the [Crisis Text Line](https://www.crisistextline.org/?gclid=EAIaIQobChMIsPDQrdXH5wIVBRx9Ch1YdQjIEAAYASAAEgJ_1_D_BwE) at 741741 to connect with a volunteer crisis counselor for free and confidential support 24/7.
- Not in the United States? Find a helpline in your country with [Befrienders Worldwide](https://www.befrienders.org/).
- Call 911 or your local emergency services number if you feel safe to do so.
If you’re calling on behalf of someone else, stay with them until help arrives. You may remove weapons or substances that can cause harm if you can do so safely.
If you’re not in the same household, stay on the phone with them until help arrives.
## [Schizophrenia statistics]()
- Schizophrenia is typically diagnosed in people in their
[late teens to early 30s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Men tend to show symptoms earlier, and cannabis use disorder
[may be](https://www.nih.gov/news-events/news-releases/young-men-highest-risk-schizophrenia-linked-cannabis-use-disorder)
a contributing factor. Men also receive a diagnosis earlier than others, between
[late adolescence and their early 20s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Women tend to receive a diagnosis later than men, from their
[early 20s to early 30s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Research suggests that schizophrenia occurs in
[less than 1%](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
of people. It affects
[more than 24 million](http://www.who.int/news-room/fact-sheets/detail/schizophrenia)
people around the world.
- Worldwide, schizophrenia is
[one of the top](https://www.nimh.nih.gov/health/statistics/schizophrenia)
causes of disability.
- [Almost half](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
of people with schizophrenia also have other mental health issues.
## [Schizophrenia prevention]()
There’s no real way to prevent schizophrenia. Still, identifying who’s at risk and how to prevent the disorder from occurring in at-risk individuals has been an important focus of researchers in recent years.
According to the World Health Organization (WHO), [at least one-third](https://www.who.int/news-room/fact-sheets/detail/schizophrenia) of people with schizophrenia experience a complete remission of symptoms. To get on the road to improvement, it’s important to:
- learn about your condition
- understand the risk factors
- follow your healthcare team’s treatment plan
## [The takeaway]()
Schizophrenia symptoms can go away for a while and then return, but it’s possible to enjoy a healthy, symptom-free life. Following your healthcare professional’s recommendations will improve your outlook.
If you’re looking for information on programs that provide services for the assessment and treatment of early signs and symptoms of psychosis or schizophrenia, you can look for a facility near you using the Substance Abuse and Mental Health Services Administration’s [Early Serious Mental Illness Treatment Locator](https://www.samhsa.gov/esmi-treatment-locator) and the [Early Psychosis Intervention Network (EPINET) Clinics locator](https://nationalepinet.org/epinet-clinics/).
[Read this article in Spanish.](https://www.healthline.com/health/es/esquizofrenia)
### How we reviewed this article:
Sources
History
Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical journals and associations. We only use quality, credible sources to ensure content accuracy and integrity. You can learn more about how we ensure our content is accurate and current by reading our [editorial policy](https://www.healthline.com/about/process).
- Causes: Schizophrenia. (2023).
<https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/>
- Hany M, et al. (2024). Schizophrenia.
<https://www.ncbi.nlm.nih.gov/books/NBK539864/>
- Keshavan MS, et al. (2021). Neuroimaging in schizophrenia.
<https://pmc.ncbi.nlm.nih.gov/articles/PMC7724147/>
- National Institutes of Health. (2023). Young men at highest risk of schizophrenia linked with cannabis use disorder \[Press release\].
<https://www.nih.gov/news-events/news-releases/young-men-highest-risk-schizophrenia-linked-cannabis-use-disorder>
- Schizophrenia \[Fact sheet\]. (2022).
<https://www.who.int/news-room/fact-sheets/detail/schizophrenia>
- Schizophrenia. (2024).
<https://www.nimh.nih.gov/health/topics/schizophrenia>
- Schizophrenia. (n.d.).
<https://www.nimh.nih.gov/health/statistics/schizophrenia>
- Tandon R, et al. (2024). The schizophrenia syndrome, circa 2024: What we know and how that informs its nature.
[https://www.sciencedirect.com/science/article/abs/pii/S0920996423004279?via%3Dihub](https://www.sciencedirect.com/science/article/abs/pii/S0920996423004279?via%3Dihub)
- What is schizophrenia? (2024).
<https://www.psychiatry.org/patients-families/schizophrenia/what-is-schizophrenia>
Share this article

Medically reviewed by [Yalda Safai, MD, MPH](https://www.healthline.com/reviewers/yalda-safai-md-mph) — Written by [Valencia Higuera](https://www.healthline.com/authors/valencia-higuera) — Updated on May 19, 2025
## More in [Understanding Schizophrenia](https://www.healthline.com/program/understanding-schizophrenia)
- [8 Questions to Ask Your Doctor About Schizophrenia](https://www.healthline.com/health/schizophrenia/what-to-ask-doctor-about-schizophrenia)
- [Schizophrenia Vs. Schizoid Personality Disorder: What’s the Difference?](https://www.healthline.com/health/schizophrenia-vs-schizoid-personality-disorder)
- [Types of Schizophrenia](https://www.healthline.com/health/schizophrenia-types)
- [View all](https://www.healthline.com/program/understanding-schizophrenia)
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© 2026 Healthline Media LLC. All rights reserved. Healthline Media is an RVO Health Company. Our website services, content, and products are for informational purposes only. Healthline Media does not provide medical advice, diagnosis, or treatment. [See additional information](https://www.healthline.com/additional-information).
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| Readable Markdown | People with schizophrenia experience distortions of reality, often in the form of delusions or hallucinations.
Although exact estimates are difficult to obtain, researchers estimate that schizophrenia affects less than [1%](https://www.nimh.nih.gov/health/statistics/schizophrenia) of the global population.
Misconceptions about this disorder are common. For example, some people think schizophrenia creates a “split personality.” In fact, schizophrenia and split personality — properly termed [dissociative identity disorder](https://www.healthline.com/health/dissociative-identity-disorder) — are two different disorders.
Schizophrenia can occur in people of all ages. According to the [American Psychiatric Association](https://www.psychiatry.org/patients-families/schizophrenia/what-is-schizophrenia), men often develop symptoms in their late teens or early 20s. Women tend to show signs in their late 20s and early 30s. A [2022 report](https://www.nih.gov/news-events/news-releases/young-men-highest-risk-schizophrenia-linked-cannabis-use-disorder) states that young men with cannabis use disorder are at the highest risk of developing schizophrenia.
Here’s what you need to know about this mental health condition.
Early symptoms
Symptoms of this disorder commonly appear in the teenage years and early 20s. At these ages, the earliest symptoms may get overlooked because they mirror certain “typical” adolescent behaviors.
Early symptoms can include:
- isolating oneself from friends and family
- changing friends or social groups
- a change in focus and concentration
- sleeping problems
- irritability and agitation
- difficulties with schoolwork, or low academic performance
- anxiety
- vague suspiciousness
- odd ideas
- feeling different from others
When it comes to more advanced symptoms, these tend to fall into three distinct categories: positive symptoms, negative symptoms, and cognitive symptoms.
The terms “positive” and “negative” have different connotations here: “Positive” symptoms mean added thoughts or actions to one’s typical experience. “Negative” symptoms are the absence of typical behaviors.
Positive symptoms
Positive symptoms of schizophrenia aren’t typical in individuals without schizophrenia or other types of severe mental illness. These behaviors include:
- **Hallucinations:** [Hallucinations](https://www.healthline.com/health/hallucinations) are experiences that appear real but are created by your mind. They include seeing things, hearing voices, or smelling things that others around you don’t experience.
- **Delusions:** A delusion occurs when you believe something despite evidence or facts to the contrary.
- **Paranoia:** Paranoia is when someone is unusually distrustful of others or firmly believes they are being followed or persecuted.
Negative symptoms
Negative symptoms of schizophrenia interrupt a person’s typical emotions, behaviors, and abilities. These symptoms include:
- reduction in speaking
- odd emotional responses to situations
- a lack of emotion or expressions
- loss of interest or excitement for life
- social isolation
- trouble experiencing pleasure
- difficulty beginning or following through with plans
- difficulty completing normal everyday activities
Cognitive symptoms
Cognitive symptoms are labeled as such because they illustrate that someone is having trouble with certain mental functions. These symptoms include:
- disorganized thinking or speech, such as when a person changes topics rapidly when speaking or uses made-up words or phrases
- forgetfulness
- disorganized thinking, such as trouble focusing or paying attention
- impaired “executive functioning,” or understanding information and using it to make decisions
- problems learning information and using it
Symptoms of schizophrenia can vary in severity and type. They may worsen if an individual is experiencing heightened stress, using substances, or is not taking their prescribed medications correctly.
The exact cause of schizophrenia is unknown. Medical researchers believe several factors can contribute, including:
- biological
- genetic
- environmental
[Research](https://pmc.ncbi.nlm.nih.gov/articles/PMC7724147/) suggests that imaging tests completed on people with schizophrenia may show abnormalities in certain brain structures.
Risk factors
Even though it’s still not known what causes schizophrenia, researchers believe genetics may play a role. People with a family history of schizophrenia have a [higher risk](https://www.ncbi.nlm.nih.gov/books/NBK539864/) of developing this disorder.
Other risk factors for schizophrenia may [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/):
- having exposure to toxins, a virus, or malnutrition before birth or during infancy
- using mind-altering drugs
- living in a highly stressful situation
- taking mind-altering drugs in adolescence or young adulthood
Schizophrenia is a serious mental illness that should not be ignored or left untreated. The condition increases the risk of serious complications, such as:
- self-injury or suicide
- [anxiety](https://www.healthline.com/health/anxiety-symptoms)
- [phobias](https://www.healthline.com/health/phobia-simple-specific)
- [depression](https://www.healthline.com/health/depression)
- alcohol or drug misuse
- family problems
Schizophrenia can also make it difficult to work or attend school. If you can’t work or support yourself financially, there’s a higher risk of a lower quality of life.
There isn’t a single test to diagnose schizophrenia. A complete psychiatric exam can help healthcare professionals make a diagnosis. A psychiatrist or mental health professional can do this.
At your appointment, expect to answer questions about your:
- medical history
- mental health
- family medical history
Your healthcare professional may conduct the following:
- a physical exam
- blood work
- imaging tests, including an [MRI](https://www.healthline.com/health/head-mri) or [CT scan](https://www.healthline.com/health/cranial-ct-scan)
Sometimes, there can be other reasons for your symptoms, even though they may be similar to those of schizophrenia. These reasons may include:
- substance use
- certain medications
- other mental health conditions
Your healthcare team may diagnose schizophrenia if you’ve had at least two symptoms for a 1-month period. These symptoms must include:
- hallucinations
- delusions
- disorganized speech
There’s [no cure for schizophrenia](https://www.healthline.com/health/schizophrenia/can-schizophrenia-be-cured). Current treatments focus on managing or reducing the severity of symptoms.
It’s important to get treatment from a psychiatrist or mental health professional who has experience treating people with this disorder. You may also work with a social worker or a case manager, too.
Possible treatments include the following:
Medications
- hallucinations
- delusions
Psychosocial intervention
Another treatment option for schizophrenia is psychosocial intervention. This includes individual therapy to help you cope with stress and your diagnosis.
Social training can improve your social and communication skills.
Vocational rehabilitation
Vocational rehabilitation can provide you with the skills you need to return to work. It may make maintaining a regular job easier.
Family support and education
If you or someone you care about has received a diagnosis of schizophrenia, having support from family and friends can help lower stress and create a feeling of inclusion. There are educational programs available for family members that can help everyone spot the symptoms and provide support when needed.
A diagnosis of schizophrenia is common in people in their teens and early 20s. Although less common, it can begin earlier. When symptoms occur before age 13 years, the condition is sometimes called early onset or [childhood schizophrenia](https://www.healthline.com/health/understanding-schizophrenia).
Diagnosing this condition is difficult. Behavior changes aren’t unusual as children and teens develop. Plus, some of the most common symptoms of this mental health disorder also show up in other conditions. These include:
- [depression](https://www.healthline.com/health/adolescent-depression)
- [bipolar disorder](https://www.healthline.com/health/bipolar-disorder/bipolar-vs-schizophrenia)
- [attention disorders](https://www.healthline.com/health/adhd/adhd-misdiagnosis)
Symptoms of childhood schizophrenia include:
- unusual fears or anxieties (paranoia)
- sleeping problems
- mood changes
- hearing voices or seeing things (hallucinations)
- decreased attention to self-care
- sudden changes in behavior
- deterioration in academic performance
- odd beliefs or thinking
It’s important to separate the behaviors that may occur in growing children and teenagers with symptoms of a serious mental health condition.
However, if you are concerned that your child has acquired some new, worrying behaviors, it’s essential to talk with a mental health professional as soon as you can.
No matter what the issue is, a professional can support you to make the best decision for your family.
Schizophrenia and [psychosis](https://www.healthline.com/health/psychosis) may be confused with one another, but they’re not the same. One is a mental health condition, and the other is a symptom or group of symptoms.
Psychosis is one element or symptom of several mental health disorders, including schizophrenia. Psychosis can also occur in people with no other mental health symptoms.
Although psychosis can occur in people with schizophrenia, not everyone with this disorder will experience psychosis. If you or someone you know is experiencing symptoms of psychosis, seek treatment immediately.
Schizophrenia and [bipolar disorder](https://www.healthline.com/health/bipolar-disorder) are both chronic mental health conditions. They may share some characteristics, but there are distinct differences.
Bipolar disorder causes strong mood changes. These changes switch between [mania](https://www.healthline.com/health/what-a-bipolar-manic-episode-feels-like) and [depression](https://www.healthline.com/health/bipolar-disorder/depression).
During these [episodes](https://www.healthline.com/health/bipolar-disorder/episodes), it’s possible that someone with bipolar disorder will experience hallucinations or delusions, especially in a manic episode. Experiencing [psychosis](https://www.healthline.com/health/bipolar-disorder/bipolar-psychosis) along with mood changes may make completing everyday tasks harder.
Likewise, people with schizophrenia may experience hallucinations or delusions, but they’re also very likely to experience disorganized thinking and speech. Unlike someone with bipolar disorder during a manic episode, the symptoms of psychosis aren’t accompanied by mania.
No medical test can determine which condition you have. Instead, your healthcare professional may refer you to a mental health professional who will perform a comprehensive psychiatric evaluation and order some tests to help rule out possible medical causes. These tests could include blood tests, imaging tests, and drug screening tests.
While a schizophrenia diagnosis can come with an increased risk of mortality due to co-occurring conditions and the risk of suicide, proper treatment can help an individual live a productive and happy life.
Like many chronic conditions, a person’s outlook depends on a lot of personal factors, including how early a diagnosis was made, how much an individual is able and willing to follow a treatment plan, and their support system.
- Schizophrenia is typically diagnosed in people in their
[late teens to early 30s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Men tend to show symptoms earlier, and cannabis use disorder
[may be](https://www.nih.gov/news-events/news-releases/young-men-highest-risk-schizophrenia-linked-cannabis-use-disorder)
a contributing factor. Men also receive a diagnosis earlier than others, between
[late adolescence and their early 20s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Women tend to receive a diagnosis later than men, from their
[early 20s to early 30s](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
.
- Research suggests that schizophrenia occurs in
[less than 1%](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
of people. It affects
[more than 24 million](http://www.who.int/news-room/fact-sheets/detail/schizophrenia)
people around the world.
- Worldwide, schizophrenia is
[one of the top](https://www.nimh.nih.gov/health/statistics/schizophrenia)
causes of disability.
- [Almost half](https://www.nimh.nih.gov/health/statistics/schizophrenia.shtml)
of people with schizophrenia also have other mental health issues.
There’s no real way to prevent schizophrenia. Still, identifying who’s at risk and how to prevent the disorder from occurring in at-risk individuals has been an important focus of researchers in recent years.
According to the World Health Organization (WHO), [at least one-third](https://www.who.int/news-room/fact-sheets/detail/schizophrenia) of people with schizophrenia experience a complete remission of symptoms. To get on the road to improvement, it’s important to:
- learn about your condition
- understand the risk factors
- follow your healthcare team’s treatment plan
Schizophrenia symptoms can go away for a while and then return, but it’s possible to enjoy a healthy, symptom-free life. Following your healthcare professional’s recommendations will improve your outlook. |
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