A risk factor is something that raises your chance of getting a health problem. You can have schizophrenia with or without any of the risks listed below. The more factors you have, the greater chances your chances of getting it.

Schizophrenia tends to run in families. The risk if higher if schizophrenia or bipolar disorder is present in a parent, brother, or sister.

Other factors that make the risk higher:

  • Drug use—Includes illegal drugs and marijuana during teen and young adult years.
  • Father's age is older than 55 years before birth.
  • Stressful family events such as death or loss of family member or being migrant or refugee.
  • Problems at birth or in development before birth. May include bleeding, infection, or poor food resources for mother during pregnancy. Lack of oxygen, infection, early birth, or low birth weight for baby.

Revision Information

  • Reviewer: EBSCO Medical Review Board Adrian Preda, MD
  • Review Date: 12/2019 -
  • Update Date: 08/14/2019 -