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Symptoms of Schizophrenia

  • Amy Scholten, MPH
Publication Type:

Condition InDepth

Symptoms of Schizophrenia

Symptoms tend to start between the late teens and mid-30s. It can happen in children, but it is rare. They may be noticed by the person who has problems or those close to them. They often vague but can follow a pattern. The phases are:


There may be no symptoms at this stage. In those that have them, there may be:

  • Changes in behavior such as angry outbursts
  • Less grooming or hygiene
  • Trouble thinking clearly or remembering things
  • Trouble at work or school
  • Less interest in social life, activities, or hobbies
  • Sleep problems
  • Depression
  • Anxiety

Symptoms build slowly and worsen over time. They are different for each person. People may have symptoms from one or all of the next phases:


  • Holder SD, Wayhs A. Schizophrenia. Am Fam Physician. 2014;90(11):775-782.
  • Schizophrenia. EBSCO DynaMed website. Available at: http://www.dynamed.com/topics/dmp~AN~T115234/Schizophrenia. Updated November 29, 2018. Accessed August 15, 2019.
  • Schizophrenia. Mental Health America website. Available at: http://www.mentalhealthamerica.net/conditions/schizophrenia. Accessed August 15, 2019.
  • Schizophrenia. National Institute of Mental Health website. Available at: https://www.nimh.nih.gov/health/topics/schizophrenia/index.shtml. Updated February 2016. Accessed August 15, 2019.


  • Adrian Preda, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.