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| Meta Title | Paranoid schizophrenia: What it is, symptoms, and more |
| Meta Description | People with schizophrenia may experience paranoia, a type of delusion that usually involves persecution. Here, learn about support, treatment, and more. |
| Meta Canonical | null |
| Boilerpipe Text | Schizophrenia affects a personâs perception and can involve hallucinations and delusions. When these happen, it can be hard to know what is real and what is not.
âParanoid schizophreniaâ is an outdated name for a subtype of schizophrenia.
A person with schizophrenia can experience paranoia as a symptom. Paranoid delusions can cause a person to fear that others are watching them or trying to harm them. For example, a person experiencing a delusion may believe that media, such as the television or the internet, send them special messages.
These feelings and beliefs can cause severe fear and anxiety, disrupt daily life, and limit a personâs ability to participate in work and relationships, including those with family.
Before 2013, healthcare professionals considered paranoid
schizophrenia
a distinct type of schizophrenia.
It now classifies paranoia as a symptom, rather than a subtype, of the disorder.
Schizophrenia is a lifelong mental health condition. Symptoms often emerge between ages
16 and 30 years
.
It can affect a personâs:
thought processes
perceptions and feelings
sleep patterns
ability to communicate and relate to others
ability to focus and complete tasks
Symptoms of schizophrenia can
include
:
disordered thinking and information processing
issues using newly learned information
trouble focusing
withdrawing from family, friends, and activities
changes in body language and emotions
a lack of motivation, interest, and enjoyment
changes in sleep patterns
a lack of self-care
symptoms of psychosis, such as hallucinations and delusions
A delusion is something a person believes to be true, even when strong evidence suggests it is false. For example, a person may believe someone is planning to harm them.
A hallucination is when a person hears, sees, smells, tastes, or feels things that are not there. A
common hallucination
for a person with schizophrenia is hearing voices that are not there.
The person may also self-harm or attempt suicide, but this can happen with many conditions.
If a person experiences any of the above symptoms, they should receive immediate medical care. They can go to an urgent care clinic or emergency room for help.
What does âparanoiaâ mean, and what does it look like?
People with paranoia may
experience
a combination of the following:
feeling upset, anxious, angry, and confused
being suspicious of those around them
believing that someone is persecuting them
fearing that someone is following, chasing, poisoning, or otherwise plotting against them
feeling as if someone else is controlling their thoughts and actions
feeling as if their thoughts are disappearing or being taken away from them
Schizophrenia is a neuropsychiatric disorder. The exact causes are unclear, but they likely involve a combination of genetic factors and environmental triggers.
Genetic:
People with a family history may have a higher risk.
Medical:
These may include poor nutrition before birth and some viruses during pregnancy.
Biological:
Features of the brainâs structure or the activity of neurotransmitters, such as
dopamine
, may contribute.
Environmental:
Stress, past trauma, and abuse
may trigger
symptoms in people already at risk.
Studies
suggest people with schizophrenia and paranoia typically have social cognitive impairments that may develop a few years before schizophrenia symptoms appear. These symptoms
may also
continue to evolve after diagnosis.
Substance use
Some
recreational drugs
, such as amphetamines, cocaine, cannabis, and LSD, may trigger psychosis or schizophrenia in people with a susceptibility.
Experts say substance use is more common among people with schizophrenia, but it is
not clear
whether the drugs trigger the disorder or whether having schizophrenia increases the likelihood of substance use to cope with symptoms.
Various substances can also interfere with treatment. Anyone concerned about the link between schizophrenia and substance use should speak with a doctor.
If a person seeks help for symptoms that may indicate schizophrenia, a doctor will consider their personal and family medical histories and physical health as well as their symptoms.
They may also request diagnostic tests, such as blood tests and imaging tests, to rule out other possible causes of the symptoms.
Diagnostic criteria
For a doctor to diagnose schizophrenia, a person must continuously have symptoms for at least 6 months. This may involve:
delusions
hallucinations
disorganized speech
social and occupational dysfunction
highly disorganized or catatonic behavior
emotional flatness or a lack of pleasure in everyday life
A doctor can only diagnose schizophrenia if any other health issue cannot explain these symptoms, such as drug or alcohol misuse or a mood disorder.
Overall, it can take time to reach a diagnosis.
According to the
National Alliance on Mental Illness (NAMI)
, Black and Latino people in the United States are more likely than others to receive an
incorrect diagnosis
of schizophrenia. This may be due to
clinical bias
, cultural mistrust, difficulty accessing suitable healthcare, or other reasons.
Schizophrenia is a lifelong condition, but treatment can help relieve the symptoms. If a person stops treatment at any point, their symptoms may return.
It can take time to find the best approach. The right treatment for a person may be a combination of treatments. It depends on factors such as which symptoms are present, their severity, and the personâs age.
It helps if the person and doctor can work together to develop and modify the treatment plan,
NAMI
reports.
Medications
Drugs called
antipsychotics
can reduce the occurrence of disturbing thoughts, hallucinations, and delusions.
Drug options
include
the following:
an oral second-generation
antipsychotic (SGA)
to reduce psychosis, such as:
aripiprazole (
Abilify
)
olanzapine (Zyprexa)
risperidone (
Risperdal
)
quetiapine (
Seroquel
)
a mood stabilizer, such as
lithium
or divalproex sodium (
Depakote
)
once SGAs are managing acute symptoms, a slow-release injection, known as a depot preparation, of aripiprazole, paliperidone (
Invega
), risperidone, or other drugs to manage the condition
selective serotonin reuptake inhibitors (SSRIs),
such as
fluvoxamine (Luvox), for depression or anxiety
Maintenance drugs may have the same ingredients as an initial SGA, but their effects last longer because the body releases them slowly after the injection. The effects can last several weeks.
It can take time to find a suitable option. Around
30%
of people do not have a good reaction to antipsychotic drugs. In around 7% of cases, the drugs are ineffective.
If the personâs symptoms do not respond to at least two antipsychotics, a doctor may prescribe clozapine (Clozaril). This is not the first choice due to the risk of adverse effects, such as low blood cell count.
Psychotherapy and social support
Counseling and other therapy can help a person with schizophrenia live independently.
vocational training therapy
cognitive behavioral therapy
supportive
psychotherapy
cognitive enhancement therapy
Social support can help a person find work and housing, hone their communication skills, and improve their overall well-being. This may involve a
peer support group
.
Caregivers and loved ones can help by learning about schizophrenia and encouraging the person to follow their treatment plan.
Complementary medicines
According to
NAMI
, the following options may play a role in a wider treatment plan:
exercise
meditation
nutritional interventions, such as avoiding
blood sugar spikes
or increasing
omega-3 intake
While these may help, they cannot replace traditional treatment.
It is important that people with schizophrenia discuss any complementary treatments with their doctors.
Without treatment, schizophrenia can significantly disrupt a personâs life, including their ability to work, study, and care for themselves.
Some helpful strategies
include
:
following the treatment plan, including taking medications as prescribed
bringing up any concerns about treatment with a healthcare professional
making use of available support, which may involve friends, crisis services, and specialized healthcare facilities
making healthy choices regarding diet, exercise, and the use of drugs, alcohol, and tobacco
talking about the experience of schizophrenia with friends, family members, healthcare professionals, and supportive peers
Loved ones can help by:
listening to the person without judgment
educating themselves about schizophrenia
learning to spot the signs of a flare-up
understanding what to do if a flare-up happens
Here are some questions people often ask about schizophrenia-related paranoia.
What is paranoid schizophrenia like?
Experts no longer consider paranoid schizophrenia a type of schizophrenia, but paranoia can be a symptom of schizophrenia.
A person may believe people are watching, harassing, or persecuting them. This can give rise to anxiety and fear.
What triggers paranoia in a person with schizophrenia?
Paranoia is a symptom that affects some people with schizophrenia. Doctors do not know precisely what causes schizophrenia, but it probably stems from a combination of genetic and environmental factors.
It is a complex condition, but
experts
have suggested risk factors may include:
birthing complications
health issues in the birthing parent during pregnancy
a family history of psychosis
childhood trauma
social isolation
living in an urban environment
cannabis use
A person undergoing treatment for schizophrenia may experience symptoms if they stop taking medication.
What are some warning signs of schizophrenia?
The first episode of schizophrenia
usually happens
during adolescence or early adulthood. Changes are often gradual. A person may not be aware of changes in themselves, but others may notice the following:
social withdrawal and depressed mood
apparent personality changes
unusual behavior and speech
lack of self-care
self-harm or suicide attempts
extreme reactions to criticism
calling emergency services about perceived but delusional symptoms
getting into trouble with authorities, such as the police
How do you calm down a schizophrenic episode?
If someone is experiencing paranoia or psychosis due to schizophrenia,
NAMI
suggests speaking calmly, clearly, and respectfully without tolerating dangerous or inappropriate behavior. Remember that their hallucinations or delusions seem very real to them.
A person can help them get treatment or stay in treatment. If they are at risk of hurting themselves or others, a person may need to call emergency medical services.
Schizophrenia is a severe mental health condition that can involve delusions and paranoia.
A person with paranoia may fear that other people are pursuing and intending to harm them. This can have a severe impact on their safety and overall well-being.
Treatment can often help a person manage their symptoms and live a full life. It is important to receive ongoing support.
ââ |
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Schizophrenia
#### Related Topics
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Causes & Risk Factors
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- ### Treatment
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- ### Stages
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- ### Types
Types
#### Related Articles
- [Catatonic Schizophrenia](https://www.medicalnewstoday.com/articles/192263)
- [In Females](https://www.medicalnewstoday.com/articles/schizophrenia-in-women)
- [Undifferentiated Schizophrenia](https://www.medicalnewstoday.com/articles/undifferentiated-schizophrenia)
- [Treatment-Resistant Schizophrenia](https://www.medicalnewstoday.com/articles/treatment-resistant-schizophrenia)
- [Borderline Schizophrenia](https://www.medicalnewstoday.com/articles/borderline-schizophrenia)
- [Acute Schizophrenia](https://www.medicalnewstoday.com/articles/acute-schizophrenia)
- [Simple Schizophrenia](https://www.medicalnewstoday.com/articles/simple-schizophrenia)
- [In Children](https://www.medicalnewstoday.com/articles/192104)
- [High Functioning Schizophrenia](https://www.medicalnewstoday.com/articles/high-functioning-schizophrenia)
- [Types Overview](https://www.medicalnewstoday.com/articles/192770)
# What you need to know about paranoia and schizophrenia

[Medically reviewed]() by [Yalda Safai, MD, MPH]() â Written by [Yvette Brazier]() â [Updated on September 27, 2023]()
- [Definition](https://www.medicalnewstoday.com/articles/192621#definition)
- [Symptoms](https://www.medicalnewstoday.com/articles/192621#symptoms)
- [Causes](https://www.medicalnewstoday.com/articles/192621#causes)
- [Diagnosis](https://www.medicalnewstoday.com/articles/192621#diagnosis)
- [Treatment](https://www.medicalnewstoday.com/articles/192621#treatment)
- [Managing](https://www.medicalnewstoday.com/articles/192621#managing)
- [FAQ](https://www.medicalnewstoday.com/articles/192621#faq)
- [Summary](https://www.medicalnewstoday.com/articles/192621#summary)
### Key takeaway
- Paranoia, characterized by the fear that others intend to cause harm, can significantly affect a personâs well-being and safety when experiencing schizophrenia.
- Although âparanoid schizophreniaâ is no longer a distinct diagnosis, paranoia is recognized as a symptom of schizophrenia, a lifelong mental health condition with symptoms emerging typically between the ages of 16 and 30.
- Schizophrenia is a neuropsychiatric disorder, and while there is no cure, a combination of medication, psychotherapy, and social support can help manage symptoms and improve a personâs quality of life.
***
Schizophrenia affects a personâs perception and can involve hallucinations and delusions. When these happen, it can be hard to know what is real and what is not.
âParanoid schizophreniaâ is an outdated name for a subtype of schizophrenia.
A person with schizophrenia can experience paranoia as a symptom. Paranoid delusions can cause a person to fear that others are watching them or trying to harm them. For example, a person experiencing a delusion may believe that media, such as the television or the internet, send them special messages.
These feelings and beliefs can cause severe fear and anxiety, disrupt daily life, and limit a personâs ability to participate in work and relationships, including those with family.
## [What is âparanoid schizophreniaâ?]()

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Before 2013, healthcare professionals considered paranoid [schizophrenia](https://www.medicalnewstoday.com/articles/36942) a distinct type of schizophrenia.
However, the *[Diagnostic and Statistical Manual of Mental Disorders, 5th edition, text revision (DSM-5-TR)](https://dsm.psychiatryonline.org/doi/book/10.1176/appi.books.9780890425787)*, which provides expert guidelines, [dropped](https://www.ncbi.nlm.nih.gov/books/NBK519704/table/ch3.t22/) that classification in 2016.
It now classifies paranoia as a symptom, rather than a subtype, of the disorder.
## [Signs and symptoms]()
Schizophrenia is a lifelong mental health condition. Symptoms often emerge between ages [16 and 30 years](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml).
It can affect a personâs:
- thought processes
- perceptions and feelings
- sleep patterns
- ability to communicate and relate to others
- ability to focus and complete tasks
Symptoms of schizophrenia can [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/):
- disordered thinking and information processing
- issues using newly learned information
- trouble focusing
- withdrawing from family, friends, and activities
- changes in body language and emotions
- a lack of motivation, interest, and enjoyment
- changes in sleep patterns
- a lack of self-care
- symptoms of psychosis, such as hallucinations and delusions
A delusion is something a person believes to be true, even when strong evidence suggests it is false. For example, a person may believe someone is planning to harm them.
A hallucination is when a person hears, sees, smells, tastes, or feels things that are not there. A [common hallucination](https://www.nimh.nih.gov/health/topics/schizophrenia) for a person with schizophrenia is hearing voices that are not there.
The person may also self-harm or attempt suicide, but this can happen with many conditions.
If a person experiences any of the above symptoms, they should receive immediate medical care. They can go to an urgent care clinic or emergency room for help.
[Find out more about disorganized thinking, a symptom of schizophrenia.](https://www.medicalnewstoday.com/articles/192361)
### 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 Lifeline](https://988lifeline.org/) at 988 or chat at 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 youâre 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 youâre not in the same household, stay on the phone with them until help arrives.
### What does âparanoiaâ mean, and what does it look like?
People with paranoia may [experience](https://www.nhs.uk/conditions/schizophrenia/symptoms/) a combination of the following:
- feeling upset, anxious, angry, and confused
- being suspicious of those around them
- believing that someone is persecuting them
- fearing that someone is following, chasing, poisoning, or otherwise plotting against them
- feeling as if someone else is controlling their thoughts and actions
- feeling as if their thoughts are disappearing or being taken away from them
## [Causes and risk factors]()
Schizophrenia is a neuropsychiatric disorder. The exact causes are unclear, but they likely involve a combination of genetic factors and environmental triggers.
[Risk factors](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml) may include:
- **Genetic:** People with a family history may have a higher risk.
- **Medical:** These may include poor nutrition before birth and some viruses during pregnancy.
- **Biological:** Features of the brainâs structure or the activity of neurotransmitters, such as [dopamine](https://www.medicalnewstoday.com/articles/326090), may contribute.
- **Environmental:** Stress, past trauma, and abuse [may trigger](https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/) symptoms in people already at risk.
[Studies](https://www.sciencedirect.com/science/article/pii/S2215001322000142) suggest people with schizophrenia and paranoia typically have social cognitive impairments that may develop a few years before schizophrenia symptoms appear. These symptoms [may also](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810454/) continue to evolve after diagnosis.
### Substance use
Some [recreational drugs](https://www.nhs.uk/conditions/schizophrenia/causes/), such as amphetamines, cocaine, cannabis, and LSD, may trigger psychosis or schizophrenia in people with a susceptibility.
Experts say substance use is more common among people with schizophrenia, but it is [not clear](https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/) whether the drugs trigger the disorder or whether having schizophrenia increases the likelihood of substance use to cope with symptoms.
Various substances can also interfere with treatment. Anyone concerned about the link between schizophrenia and substance use should speak with a doctor.
[Can cannabis affect schizophrenia?](https://www.medicalnewstoday.com/articles/weed-induced-schizophrenia-symptoms)
## [How do doctors diagnose schizophrenia?]()
If a person seeks help for symptoms that may indicate schizophrenia, a doctor will consider their personal and family medical histories and physical health as well as their symptoms.
They may also request diagnostic tests, such as blood tests and imaging tests, to rule out other possible causes of the symptoms.
### Diagnostic criteria
For a doctor to diagnose schizophrenia, a person must continuously have symptoms for at least 6 months. This may involve:
- delusions
- hallucinations
- disorganized speech
- social and occupational dysfunction
- highly disorganized or catatonic behavior
- emotional flatness or a lack of pleasure in everyday life
A doctor can only diagnose schizophrenia if any other health issue cannot explain these symptoms, such as drug or alcohol misuse or a mood disorder.
Overall, it can take time to reach a diagnosis.
According to the [National Alliance on Mental Illness (NAMI)](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia), Black and Latino people in the United States are more likely than others to receive an [incorrect diagnosis](https://ps.psychiatryonline.org/doi/10.1176/appi.ps.201800223) of schizophrenia. This may be due to [clinical bias](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947477/), cultural mistrust, difficulty accessing suitable healthcare, or other reasons.
[Learn about schizoaffective disorder, which involves schizophrenia and a mood disorder.](https://www.medicalnewstoday.com/articles/190678)
## [Treatment]()
Schizophrenia is a lifelong condition, but treatment can help relieve the symptoms. If a person stops treatment at any point, their symptoms may return.
It can take time to find the best approach. The right treatment for a person may be a combination of treatments. It depends on factors such as which symptoms are present, their severity, and the personâs age.
It helps if the person and doctor can work together to develop and modify the treatment plan, [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia) reports.
### Medications
Drugs called [antipsychotics](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml) can reduce the occurrence of disturbing thoughts, hallucinations, and delusions.
Drug options [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/) the following:
- an oral second-generation [antipsychotic (SGA)](https://www.medicalnewstoday.com/articles/best-medication-for-psychosis) to reduce psychosis, such as:
- aripiprazole ([Abilify](https://www.medicalnewstoday.com/articles/abilify))
- olanzapine (Zyprexa)
- risperidone ([Risperdal](https://www.medicalnewstoday.com/articles/risperdal-schizophrenia))
- quetiapine ([Seroquel](https://www.medicalnewstoday.com/articles/drugs-seroquel))
- a mood stabilizer, such as [lithium](https://www.medicalnewstoday.com/articles/lithium) or divalproex sodium ([Depakote](https://www.medicalnewstoday.com/articles/drugs-depakote))
- once SGAs are managing acute symptoms, a slow-release injection, known as a depot preparation, of aripiprazole, paliperidone ([Invega](https://www.medicalnewstoday.com/articles/drugs-invega)), risperidone, or other drugs to manage the condition
- selective serotonin reuptake inhibitors (SSRIs),
[such as](https://pubmed.ncbi.nlm.nih.gov/27148641/)
fluvoxamine (Luvox), for depression or anxiety
[What are the side effects of Abilify?](https://www.medicalnewstoday.com/articles/drugs-abilify-side-effects)
Maintenance drugs may have the same ingredients as an initial SGA, but their effects last longer because the body releases them slowly after the injection. The effects can last several weeks.
It can take time to find a suitable option. Around [30%](https://www.ncbi.nlm.nih.gov/books/NBK539864/) of people do not have a good reaction to antipsychotic drugs. In around 7% of cases, the drugs are ineffective.
If the personâs symptoms do not respond to at least two antipsychotics, a doctor may prescribe clozapine (Clozaril). This is not the first choice due to the risk of adverse effects, such as low blood cell count.
[Learn more about SGAs and other antipsychotics for schizophrenia.](https://www.medicalnewstoday.com/articles/schizophrenia-second-generation-antipsychotics)
### Psychotherapy and social support
Counseling and other therapy can help a person with schizophrenia live independently.
Some options [include](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml):
- vocational training therapy
- [cognitive behavioral therapy](https://www.medicalnewstoday.com/articles/296579)
- supportive [psychotherapy](https://www.medicalnewstoday.com/articles/156433)
- cognitive enhancement therapy
Social support can help a person find work and housing, hone their communication skills, and improve their overall well-being. This may involve a [peer support group](https://www.nami.org/Support-Education/Mental-Health-Education/NAMI-Peer-to-Peer).
Caregivers and loved ones can help by learning about schizophrenia and encouraging the person to follow their treatment plan.
### Complementary medicines
According to [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia/Treatment), the following options may play a role in a wider treatment plan:
- exercise
- [meditation](https://www.medicalnewstoday.com/articles/320392)
- nutritional interventions, such as avoiding [blood sugar spikes](https://www.medicalnewstoday.com/articles/317215) or increasing [omega-3 intake](https://www.medicalnewstoday.com/articles/325179)
While these may help, they cannot replace traditional treatment.
It is important that people with schizophrenia discuss any complementary treatments with their doctors.
## [Living with schizophrenia]()
Without treatment, schizophrenia can significantly disrupt a personâs life, including their ability to work, study, and care for themselves.
Some helpful strategies [include](https://www.nhs.uk/conditions/schizophrenia/living-with/):
- following the treatment plan, including taking medications as prescribed
- bringing up any concerns about treatment with a healthcare professional
- making use of available support, which may involve friends, crisis services, and specialized healthcare facilities
- making healthy choices regarding diet, exercise, and the use of drugs, alcohol, and tobacco
- talking about the experience of schizophrenia with friends, family members, healthcare professionals, and supportive peers
Loved ones can help by:
- listening to the person without judgment
- educating themselves about schizophrenia
- learning to spot the signs of a flare-up
- understanding what to do if a flare-up happens
## [Frequently asked questions]()
Here are some questions people often ask about schizophrenia-related paranoia.
### What is paranoid schizophrenia like?
Experts no longer consider paranoid schizophrenia a type of schizophrenia, but paranoia can be a symptom of schizophrenia.
A person may believe people are watching, harassing, or persecuting them. This can give rise to anxiety and fear.
### What triggers paranoia in a person with schizophrenia?
Paranoia is a symptom that affects some people with schizophrenia. Doctors do not know precisely what causes schizophrenia, but it probably stems from a combination of genetic and environmental factors.
It is a complex condition, but [experts](https://www.ncbi.nlm.nih.gov/books/NBK539864/) have suggested risk factors may include:
- birthing complications
- health issues in the birthing parent during pregnancy
- a family history of psychosis
- childhood trauma
- social isolation
- living in an urban environment
- cannabis use
A person undergoing treatment for schizophrenia may experience symptoms if they stop taking medication.
### What are some warning signs of schizophrenia?
The first episode of schizophrenia [usually happens](https://www.ncbi.nlm.nih.gov/books/NBK539864/) during adolescence or early adulthood. Changes are often gradual. A person may not be aware of changes in themselves, but others may notice the following:
- social withdrawal and depressed mood
- apparent personality changes
- unusual behavior and speech
- lack of self-care
- self-harm or suicide attempts
- extreme reactions to criticism
- calling emergency services about perceived but delusional symptoms
- getting into trouble with authorities, such as the police
### How do you calm down a schizophrenic episode?
If someone is experiencing paranoia or psychosis due to schizophrenia, [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia/Support) suggests speaking calmly, clearly, and respectfully without tolerating dangerous or inappropriate behavior. Remember that their hallucinations or delusions seem very real to them.
A person can help them get treatment or stay in treatment. If they are at risk of hurting themselves or others, a person may need to call emergency medical services.
## [Summary]()
Schizophrenia is a severe mental health condition that can involve delusions and paranoia.
A person with paranoia may fear that other people are pursuing and intending to harm them. This can have a severe impact on their safety and overall well-being.
Treatment can often help a person manage their symptoms and live a full life. It is important to receive ongoing support.
ââ
- [Mental Health](https://www.medicalnewstoday.com/categories/mental-health)
- [Schizophrenia](https://www.medicalnewstoday.com/categories/schizophrenia)
- [Psychology / Psychiatry](https://www.medicalnewstoday.com/categories/psychology-psychiatry)
### How we reviewed this article:
Sources
Medical News Today 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.medicalnewstoday.com/articles/process).
- Faber SC, et al. (2023). The weaponization of medicine: Early psychosis in the Black community and the need for racially informed mental healthcare.
<https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947477/>
- Gara MA, et al. (2018). A naturalistic study of racial disparities in diagnoses at an outpatient behavioral health clinic.
<https://ps.psychiatryonline.org/doi/10.1176/appi.ps.201800223>
- Hany M, et al. (2023). Schizophrenia.
<https://www.ncbi.nlm.nih.gov/books/NBK539864/>
- Harvey PD, et al. (2022). Cognitive dysfunction in schizophrenia: An expert group paper on the current state of the art.
<https://www.sciencedirect.com/science/article/pii/S2215001322000142>
- Overview: Schizophrenia. (2023).
<https://www.nhs.uk/conditions/schizophrenia/>
- Schizophrenia. (2023).
<https://www.nimh.nih.gov/health/topics/schizophrenia>
- Schizophrenia. (n.d.).
<https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia/Overview>
- Schizophrenia. (n.d.).
<https://www.nimh.nih.gov/health/statistics/schizophrenia>
- Table 3.22: DSM-IV to DSM-5 schizophrenia comparison. Impact of the DSM-IV to DSM-5 changes on the National Survey on Drug Use and Health. (2016).
<https://www.ncbi.nlm.nih.gov/books/NBK519704/table/ch3.t22/>
- Tripathi A, et al. (2018). Cognitive deficits in schizophrenia: Understanding the biological correlates and remediation strategies.
<https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810454/>
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[Medically reviewed]() by [Yalda Safai, MD, MPH]() â Written by [Yvette Brazier]() â [Updated on September 27, 2023]()
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| Readable Markdown | Schizophrenia affects a personâs perception and can involve hallucinations and delusions. When these happen, it can be hard to know what is real and what is not.
âParanoid schizophreniaâ is an outdated name for a subtype of schizophrenia.
A person with schizophrenia can experience paranoia as a symptom. Paranoid delusions can cause a person to fear that others are watching them or trying to harm them. For example, a person experiencing a delusion may believe that media, such as the television or the internet, send them special messages.
These feelings and beliefs can cause severe fear and anxiety, disrupt daily life, and limit a personâs ability to participate in work and relationships, including those with family.
Before 2013, healthcare professionals considered paranoid [schizophrenia](https://www.medicalnewstoday.com/articles/36942) a distinct type of schizophrenia.
It now classifies paranoia as a symptom, rather than a subtype, of the disorder.
Schizophrenia is a lifelong mental health condition. Symptoms often emerge between ages [16 and 30 years](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml).
It can affect a personâs:
- thought processes
- perceptions and feelings
- sleep patterns
- ability to communicate and relate to others
- ability to focus and complete tasks
Symptoms of schizophrenia can [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/):
- disordered thinking and information processing
- issues using newly learned information
- trouble focusing
- withdrawing from family, friends, and activities
- changes in body language and emotions
- a lack of motivation, interest, and enjoyment
- changes in sleep patterns
- a lack of self-care
- symptoms of psychosis, such as hallucinations and delusions
A delusion is something a person believes to be true, even when strong evidence suggests it is false. For example, a person may believe someone is planning to harm them.
A hallucination is when a person hears, sees, smells, tastes, or feels things that are not there. A [common hallucination](https://www.nimh.nih.gov/health/topics/schizophrenia) for a person with schizophrenia is hearing voices that are not there.
The person may also self-harm or attempt suicide, but this can happen with many conditions.
If a person experiences any of the above symptoms, they should receive immediate medical care. They can go to an urgent care clinic or emergency room for help.
What does âparanoiaâ mean, and what does it look like?
People with paranoia may [experience](https://www.nhs.uk/conditions/schizophrenia/symptoms/) a combination of the following:
- feeling upset, anxious, angry, and confused
- being suspicious of those around them
- believing that someone is persecuting them
- fearing that someone is following, chasing, poisoning, or otherwise plotting against them
- feeling as if someone else is controlling their thoughts and actions
- feeling as if their thoughts are disappearing or being taken away from them
Schizophrenia is a neuropsychiatric disorder. The exact causes are unclear, but they likely involve a combination of genetic factors and environmental triggers.
- **Genetic:** People with a family history may have a higher risk.
- **Medical:** These may include poor nutrition before birth and some viruses during pregnancy.
- **Biological:** Features of the brainâs structure or the activity of neurotransmitters, such as [dopamine](https://www.medicalnewstoday.com/articles/326090), may contribute.
- **Environmental:** Stress, past trauma, and abuse [may trigger](https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/) symptoms in people already at risk.
[Studies](https://www.sciencedirect.com/science/article/pii/S2215001322000142) suggest people with schizophrenia and paranoia typically have social cognitive impairments that may develop a few years before schizophrenia symptoms appear. These symptoms [may also](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810454/) continue to evolve after diagnosis.
Substance use
Some [recreational drugs](https://www.nhs.uk/conditions/schizophrenia/causes/), such as amphetamines, cocaine, cannabis, and LSD, may trigger psychosis or schizophrenia in people with a susceptibility.
Experts say substance use is more common among people with schizophrenia, but it is [not clear](https://www.nhs.uk/mental-health/conditions/schizophrenia/causes/) whether the drugs trigger the disorder or whether having schizophrenia increases the likelihood of substance use to cope with symptoms.
Various substances can also interfere with treatment. Anyone concerned about the link between schizophrenia and substance use should speak with a doctor.
If a person seeks help for symptoms that may indicate schizophrenia, a doctor will consider their personal and family medical histories and physical health as well as their symptoms.
They may also request diagnostic tests, such as blood tests and imaging tests, to rule out other possible causes of the symptoms.
Diagnostic criteria
For a doctor to diagnose schizophrenia, a person must continuously have symptoms for at least 6 months. This may involve:
- delusions
- hallucinations
- disorganized speech
- social and occupational dysfunction
- highly disorganized or catatonic behavior
- emotional flatness or a lack of pleasure in everyday life
A doctor can only diagnose schizophrenia if any other health issue cannot explain these symptoms, such as drug or alcohol misuse or a mood disorder.
Overall, it can take time to reach a diagnosis.
According to the [National Alliance on Mental Illness (NAMI)](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia), Black and Latino people in the United States are more likely than others to receive an [incorrect diagnosis](https://ps.psychiatryonline.org/doi/10.1176/appi.ps.201800223) of schizophrenia. This may be due to [clinical bias](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947477/), cultural mistrust, difficulty accessing suitable healthcare, or other reasons.
Schizophrenia is a lifelong condition, but treatment can help relieve the symptoms. If a person stops treatment at any point, their symptoms may return.
It can take time to find the best approach. The right treatment for a person may be a combination of treatments. It depends on factors such as which symptoms are present, their severity, and the personâs age.
It helps if the person and doctor can work together to develop and modify the treatment plan, [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia) reports.
Medications
Drugs called [antipsychotics](https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml) can reduce the occurrence of disturbing thoughts, hallucinations, and delusions.
Drug options [include](https://www.ncbi.nlm.nih.gov/books/NBK539864/) the following:
- an oral second-generation [antipsychotic (SGA)](https://www.medicalnewstoday.com/articles/best-medication-for-psychosis) to reduce psychosis, such as:
- aripiprazole ([Abilify](https://www.medicalnewstoday.com/articles/abilify))
- olanzapine (Zyprexa)
- risperidone ([Risperdal](https://www.medicalnewstoday.com/articles/risperdal-schizophrenia))
- quetiapine ([Seroquel](https://www.medicalnewstoday.com/articles/drugs-seroquel))
- a mood stabilizer, such as [lithium](https://www.medicalnewstoday.com/articles/lithium) or divalproex sodium ([Depakote](https://www.medicalnewstoday.com/articles/drugs-depakote))
- once SGAs are managing acute symptoms, a slow-release injection, known as a depot preparation, of aripiprazole, paliperidone ([Invega](https://www.medicalnewstoday.com/articles/drugs-invega)), risperidone, or other drugs to manage the condition
- selective serotonin reuptake inhibitors (SSRIs),
[such as](https://pubmed.ncbi.nlm.nih.gov/27148641/)
fluvoxamine (Luvox), for depression or anxiety
Maintenance drugs may have the same ingredients as an initial SGA, but their effects last longer because the body releases them slowly after the injection. The effects can last several weeks.
It can take time to find a suitable option. Around [30%](https://www.ncbi.nlm.nih.gov/books/NBK539864/) of people do not have a good reaction to antipsychotic drugs. In around 7% of cases, the drugs are ineffective.
If the personâs symptoms do not respond to at least two antipsychotics, a doctor may prescribe clozapine (Clozaril). This is not the first choice due to the risk of adverse effects, such as low blood cell count.
Psychotherapy and social support
Counseling and other therapy can help a person with schizophrenia live independently.
- vocational training therapy
- [cognitive behavioral therapy](https://www.medicalnewstoday.com/articles/296579)
- supportive [psychotherapy](https://www.medicalnewstoday.com/articles/156433)
- cognitive enhancement therapy
Social support can help a person find work and housing, hone their communication skills, and improve their overall well-being. This may involve a [peer support group](https://www.nami.org/Support-Education/Mental-Health-Education/NAMI-Peer-to-Peer).
Caregivers and loved ones can help by learning about schizophrenia and encouraging the person to follow their treatment plan.
Complementary medicines
According to [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia/Treatment), the following options may play a role in a wider treatment plan:
- exercise
- [meditation](https://www.medicalnewstoday.com/articles/320392)
- nutritional interventions, such as avoiding [blood sugar spikes](https://www.medicalnewstoday.com/articles/317215) or increasing [omega-3 intake](https://www.medicalnewstoday.com/articles/325179)
While these may help, they cannot replace traditional treatment.
It is important that people with schizophrenia discuss any complementary treatments with their doctors.
Without treatment, schizophrenia can significantly disrupt a personâs life, including their ability to work, study, and care for themselves.
Some helpful strategies [include](https://www.nhs.uk/conditions/schizophrenia/living-with/):
- following the treatment plan, including taking medications as prescribed
- bringing up any concerns about treatment with a healthcare professional
- making use of available support, which may involve friends, crisis services, and specialized healthcare facilities
- making healthy choices regarding diet, exercise, and the use of drugs, alcohol, and tobacco
- talking about the experience of schizophrenia with friends, family members, healthcare professionals, and supportive peers
Loved ones can help by:
- listening to the person without judgment
- educating themselves about schizophrenia
- learning to spot the signs of a flare-up
- understanding what to do if a flare-up happens
Here are some questions people often ask about schizophrenia-related paranoia.
What is paranoid schizophrenia like?
Experts no longer consider paranoid schizophrenia a type of schizophrenia, but paranoia can be a symptom of schizophrenia.
A person may believe people are watching, harassing, or persecuting them. This can give rise to anxiety and fear.
What triggers paranoia in a person with schizophrenia?
Paranoia is a symptom that affects some people with schizophrenia. Doctors do not know precisely what causes schizophrenia, but it probably stems from a combination of genetic and environmental factors.
It is a complex condition, but [experts](https://www.ncbi.nlm.nih.gov/books/NBK539864/) have suggested risk factors may include:
- birthing complications
- health issues in the birthing parent during pregnancy
- a family history of psychosis
- childhood trauma
- social isolation
- living in an urban environment
- cannabis use
A person undergoing treatment for schizophrenia may experience symptoms if they stop taking medication.
What are some warning signs of schizophrenia?
The first episode of schizophrenia [usually happens](https://www.ncbi.nlm.nih.gov/books/NBK539864/) during adolescence or early adulthood. Changes are often gradual. A person may not be aware of changes in themselves, but others may notice the following:
- social withdrawal and depressed mood
- apparent personality changes
- unusual behavior and speech
- lack of self-care
- self-harm or suicide attempts
- extreme reactions to criticism
- calling emergency services about perceived but delusional symptoms
- getting into trouble with authorities, such as the police
How do you calm down a schizophrenic episode?
If someone is experiencing paranoia or psychosis due to schizophrenia, [NAMI](https://www.nami.org/About-Mental-Illness/Mental-Health-Conditions/Schizophrenia/Support) suggests speaking calmly, clearly, and respectfully without tolerating dangerous or inappropriate behavior. Remember that their hallucinations or delusions seem very real to them.
A person can help them get treatment or stay in treatment. If they are at risk of hurting themselves or others, a person may need to call emergency medical services.
Schizophrenia is a severe mental health condition that can involve delusions and paranoia.
A person with paranoia may fear that other people are pursuing and intending to harm them. This can have a severe impact on their safety and overall well-being.
Treatment can often help a person manage their symptoms and live a full life. It is important to receive ongoing support.
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