What Causes Psychotic Disorders?
The exact cause of psychotic disorders is not known, but researchers believe that many factors may play a role. Some psychotic disorders tend to run in families, suggesting that the tendency, or likelihood, to develop the disorder may be inherited. Environmental factors may also play a role in their development, including stress, drug abuse and major life changes.
These disorders most often first appear when a person is in his or her late teens, 20s or 30s.