This section explains what psychosis is and its possible causes and where you can get further information and support.
Psychosis is a medical term used to describe hearing or seeing things that do not exist, or believing things that other people do not.
Common examples include hearing voices or believing that people are trying to do you harm.
You can experience psychosis for a wide variety of reasons. For example it can be due to having a mental illness such as schizophrenia or bipolar disorder. It may be caused by drug use, brain injury or extreme stress.
There is no one single cause of psychosis but researchers believe that genes, biological factors and environment may play a part.
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This information was written by Rethink Mental Illness, which has been awarded Information Standard accreditation for being trusted and relevant.