Psychosis is a term used to refer to conditions in which a patient has lost contact with reality.
One of the most common psychotic conditions is schizophrenia. Schizophrenia is usually first detected between the ages of 18 and 25 and it typically progresses to a lifelong disability. Schizophrenia is relatively rare in children under the age of 15. Some researchers would say the condition is 50 times less frequent in children than in adults. Other researchers would say that it is even more rare than that.