What is the outlook (prognosis)?

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In most cases there are recurring episodes of symptoms (relapses). Most people in this group live relatively independently with varying amount of support. The frequency and duration of each relapse can vary. Some people recover completely between relapses. Some people improve between relapses but never quite fully recover. Treatment often prevents relapses, or limits the number and severity of relapses.
In some cases, there is only one episode of symptoms that lasts a few weeks or so. This is followed by a complete recovery, or substantial improvement without any further relapses. It is difficult to give an exact figure as to how often this occurs. Perhaps 2 in 10 cases or less.
Up to 2 in 10 people with schizophrenia are not helped much by treatment and need long-term dependent care. For some this is in secure accommodation.
Depression is a common complication of schizophrenia.
It is thought that up to a third of people with schizophrenia abuse alcohol and/or illegal drugs. Helping or treating such people can be difficult.
About 1 in 10 people with schizophrenia commit suicide.

The outlook is thought to be better if:

treatment is started soon after symptoms begin.
symptoms develop quickly over several weeks rather than slowly over several months.
the main symptoms are positive symptoms rather than negative symptoms.
the illness develops in a relatively older person (over 25).
symptoms ease well with medication.
treatment is taken as advised (that is, 'compliance' with treatment is good).
there is good family and social support which reduces anxiety and stress.
abuse with illegal drugs or alcohol does not occur.

Newer drugs and better psychological treatments give hope that the outlook is improving.