Schizoaffective disorder affects approximately 0.3% of the population and is often confused with schizophrenia. Schizoaffective disorder differs from schizophrenia because it involves a combination of schizophrenic symptoms as well as mood disorder symptoms like mania and depression.

There are two main types of schizoaffective disorder: bipolar type and depressive type. While the symptoms of each type vary, the clinical diagnostic criteria for schizoaffective disorder includes:

  • A continuous period where there is a manic or depressive major mood episode that occurs in unison with symptoms of schizophrenia
  • Hallucinations or delusions that persist for two weeks or longer in the absence of a major mood episode
  • Symptoms of major mood episodes that are present for the majority of the duration of the illness
  • Symptoms are not only present during substance use

In addition to schizoaffective disorders, someone may have other disorders present, like a co-occurring mental health disorder or substance use disorder. Learn more about schizoaffective disorders and related conditions from the topics below.