Psychosis

Types of psychosis

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What are different types of psychosis?

Psychosis is a complex mental health issue that comes in different forms. The most common and well-known type of psychosis is schizophrenia.

If you experience schizophrenia, you may find it hard to think clearly, understand what's real, manage your emotions, and behave in a typical way.

You might see or hear things that aren't there, have strange beliefs, and find it challenging to express your feelings in a regular way.

Schizoaffective disorder, Schizophreniform disorder, Delusional disorder and Schizotypal personality disorder are mental health conditions very similar to schizophrenia, but the symptoms of each can vary in terms of how intense they are and how long they last.

Not all experiences of psychosis fall within these categories. There are a number of other ways that people experience psychosis. These include:

  • Sudden and intense psychotic symptoms lasting typically less than one month. This is often referred to as brief psychotic disorder.
  • A temporary psychotic episode triggered by the use or withdrawal of drugs or substances. This is often referred to as substance-induced psychosis.
  • A type of psychosis triggered by severe emotional or psychological trauma. This is often referred to as trauma-induced psychosis.
  • A condition in which some people with severe depression experience psychotic symptoms. This is often referred to as depressive psychosis.
  • Psychosis occurring in some people with bipolar disorder during the manic or depressive phases. This is often referred to as bipolar psychosis.
  • Psychosis due to changes in the brain. This can be caused by injuries, tumours, infections, or certain brain conditions.
  • Psychosis from hormonal changes in the body, such as during pregnancy, after childbirth, or during menopause.

Watch this video about psychosis and its relationship with substance misuse.


Just as every person is unique, so is their experience with psychosis. While we've discussed some common types, not everyone's experience will match these categories. Psychosis is an interplay of many factors, often outside your control. It’s not your fault. There’s no reason to feel guilty or ashamed.

It’s important to understand the correct diagnosis for your experience so you can access the help you need and deserve. We have some information here, which can help you take the first steps in talking to your GP about your experience.

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