Someone you love starts saying things that don't add up. They're sure they're being watched, or they hear voices no one else hears. A doctor uses the word "psychosis," and the next question in your head is: does that mean schizophrenia?
Not necessarily. Psychosis is a set of symptoms in which a person loses some contact with reality. Schizophrenia is one specific, long-term condition in which psychosis is a central feature. Every person with schizophrenia has experienced psychosis, but many people who experience psychosis never develop schizophrenia.
What is psychosis?
The NIMH describes psychosis as a collection of symptoms that affect the mind, where there has been some loss of contact with reality. During an episode, a person's thoughts and perceptions are disrupted, and they may have difficulty recognizing what is real and what is not.
The main symptoms of psychosis are:
- Hallucinations: seeing, hearing, or feeling things that aren't there, such as hearing voices
- Delusions: strongly held false beliefs, such as believing others are trying to harm you or that the TV is sending you messages
- Disorganized thinking and speech: jumping between unrelated ideas or speech that's hard to follow
According to the NIMH, studies estimate that between 15 and 100 people out of every 100,000 develop psychosis each year, most often between the late teens and mid-20s.
Psychosis is a symptom, not a diagnosis
Psychosis can appear in many conditions. The NIMH lists schizophrenia, bipolar disorder, and severe depression among the mental illnesses that can include it, along with sleep deprivation, certain prescription medications, misuse of alcohol or drugs, and diseases of older age such as Parkinson's and Alzheimer's. And, the NIMH notes, a person can experience psychosis and never be diagnosed with schizophrenia or any other disorder.
What is schizophrenia?
Schizophrenia is a long-term mental illness that affects how a person thinks, feels, and behaves. It's less common than people often assume: the NIMH estimates that schizophrenia and related psychotic disorders affect between 0.25% and 0.64% of people in the U.S. It's typically diagnosed between the late teens and early 30s, and tends to appear earlier in men than in women.
According to the NIMH, schizophrenia involves three groups of symptoms:
- Psychotic symptoms: hallucinations, delusions, and thought disorder
- Negative symptoms: loss of motivation, loss of interest or enjoyment in daily activities, withdrawal from social life, and difficulty showing emotions
- Cognitive symptoms: problems with attention, concentration, and memory, which can make it hard to follow a conversation or remember appointments
That's the core difference. Psychosis is one piece. Schizophrenia adds the negative and cognitive symptoms, and they often affect day-to-day life as much as the psychosis does. The NIMH notes that cognitive functioning is one of the best predictors of how someone functions day to day.
Psychosis vs. schizophrenia: key differences
- What it is. Psychosis is a group of symptoms. Schizophrenia is a diagnosis.
- Causes. Psychosis has many possible causes, from drugs and lack of sleep to bipolar disorder and dementia. Schizophrenia is one of those causes.
- Duration. Psychosis can be brief. To diagnose schizophrenia, clinicians look for symptoms that have continued for at least six months, according to the DSM-5-TR criteria summarized by the MSD Manual.
- Other symptoms. Psychosis on its own centers on hallucinations, delusions, and disorganized thinking. Schizophrenia also involves negative and cognitive symptoms.
- Outlook. Psychosis from a clear cause, such as a drug or severe sleep loss, can resolve when the cause is treated. Schizophrenia usually needs long-term care, though recovery is possible.
How schizophrenia is diagnosed
There's no blood test or brain scan for schizophrenia. Under the DSM-5-TR criteria, as summarized by the MSD Manual, a diagnosis requires two or more characteristic symptoms (delusions, hallucinations, disorganized speech, disorganized behavior, or negative symptoms), at least one of which is delusions, hallucinations, or disorganized speech. The symptoms must cause a decline in work, school, or social functioning and continue for at least six months. Lab tests are often done to rule out substance use or a medical condition that can cause psychosis.
That's why a first episode of psychosis doesn't come with an immediate schizophrenia diagnosis. When psychotic symptoms last less than a month and then fully resolve, the diagnosis may be brief psychotic disorder. Other possibilities include bipolar disorder with psychotic features, depression with psychotic features, or psychosis caused by a substance or medical condition. Getting the diagnosis right takes time and careful follow-up.
What causes psychosis and schizophrenia?
The NIMH says there's no one cause of psychosis. It appears to result from a complex combination of genetic risk, differences in brain development, and exposure to stressors or trauma.
For schizophrenia, the WHO notes that an interaction between genes and a range of environmental factors is thought to cause the disorder, and that heavy cannabis use is associated with an elevated risk. Family history matters. We've covered that in more depth in is schizophrenia genetic.
Early warning signs
Psychosis often doesn't start suddenly. The NIMH lists behavioral changes that can come first:
- Suspiciousness, paranoid ideas, or uneasiness with others
- Trouble thinking clearly and logically
- Withdrawing socially and spending much more time alone
- Unusual or overly intense ideas, strange feelings, or a lack of feelings
- Decline in self-care or personal hygiene
- Disrupted sleep
- Difficulty telling reality from fantasy
- A sudden drop in grades or job performance
For schizophrenia, the NIMH notes that subtle changes in thinking and relationships may come before the diagnosis, often by years.
Treatment for psychosis and schizophrenia
Treatment depends on the cause. When psychosis comes from a drug, a medication, or lack of sleep, treating that cause may resolve it. When it's part of a mental illness, the NIMH notes that treatment of psychosis usually includes antipsychotic medication, along with other elements.
For early psychosis, coordinated specialty care is the standard. The NIMH describes it as a recovery-oriented team approach that combines treatment and support with shared decision-making among specialists, the person experiencing psychosis, and their family. People do better when it starts soon after symptoms appear. Timing matters: the NIMH notes that people often have psychotic symptoms for more than a year before receiving treatment, and that early treatment often means better recovery.
Schizophrenia usually needs ongoing care. That's not the same as a fixed outcome. According to the WHO, at least one in three people with schizophrenia will be able to fully recover. For a closer look at the options, see schizophrenia treatment options and the best treatment for schizophrenia.
When to get help
If someone is hallucinating and seems detached from reality, confused, or at risk of harming themselves or others, call 911 or go to the emergency room. If there are thoughts of suicide, call or text 988.
For warning signs that are building more slowly, such as withdrawal, suspiciousness, or a drop in functioning, get a psychiatric evaluation soon. Early care makes a difference.
At Amae Health, our clinics specialize in conditions including first-episode psychosis, schizophrenia, and schizoaffective disorder. Our care teams bring psychiatrists, therapists, primary care physicians, peer mentors, and care coordinators under one roof, working from one treatment plan. Learn how we treat psychosis.
Frequently asked questions
Is psychosis the same as schizophrenia?
No. Psychosis is a set of symptoms, mainly hallucinations, delusions, and disorganized thinking. Schizophrenia is a long-term condition that includes psychosis along with negative and cognitive symptoms. Many people experience psychosis without ever having schizophrenia.
Can you have psychosis without schizophrenia?
Yes. Psychosis can be caused by bipolar disorder, severe depression, drugs or alcohol, certain medications, severe sleep loss, or medical conditions. The NIMH notes that some people experience psychosis and are never diagnosed with any disorder.
Does a first episode of psychosis mean schizophrenia?
Not necessarily. A schizophrenia diagnosis requires symptoms lasting at least six months, along with a decline in functioning. A first episode can turn out to be brief psychotic disorder, part of a mood disorder, or caused by a substance or medical condition. Close follow-up helps clarify the diagnosis.
What's the difference between bipolar psychosis and schizophrenia?
In bipolar disorder, psychosis usually happens during severe manic or depressive episodes and tends to ease as the mood episode resolves. In schizophrenia, psychotic symptoms are not tied to mood episodes and come with negative and cognitive symptoms. Schizoaffective disorder combines features of both.
Can schizophrenia be cured?
There's no cure, but recovery is possible. The WHO reports that at least one in three people with schizophrenia will be able to fully recover, and treatment that starts early tends to lead to better outcomes.
Key takeaways
- Psychosis is a set of symptoms. Schizophrenia is one condition that causes it.
- Psychosis can come from many causes and can be brief. Schizophrenia requires at least six months of symptoms and includes negative and cognitive symptoms.
- Early warning signs often appear before psychosis starts, and early treatment leads to better recovery.
- Coordinated specialty care is the standard for early psychosis.
If you or someone you love is showing signs of psychosis, request an intake appointment. Our team will explain how an evaluation works and what the first visit involves.
