Diagnosis

Steps to help diagnose OCD may include:

  • Physical exam. This may be done to help rule out other problems that could be causing your symptoms and to check for any related complications.
  • Lab tests. These may include, for example, a complete blood count (CBC), a check of your thyroid function, and screening for alcohol and drugs.
  • Psychological evaluation. This includes discussing your thoughts, feelings, symptoms and behavior patterns. With your permission, this may include talking to your family or friends.
  • Diagnostic criteria for OCD. Your doctor may use criteria in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), published by the American Psychiatric Association.

Diagnostic challenges

It's sometimes difficult to diagnose OCD because symptoms can be similar to those of obsessive-compulsive personality disorder, anxiety disorders, depression, schizophrenia or other mental health disorders. And it's possible to have both OCD and another mental disorder. Work with your doctor so that you can get the appropriate diagnosis and treatment.

Sept. 17, 2016
References
  1. Cook AJ. Allscript EPSi. Mayo Clinic, Rochester, Minn. April 12, 2016.
  2. Obsessive-compulsive disorder. In: Diagnostic and Statistical Manual of Mental Disorders DSM-5. 5th ed. Arlington, Va.: American Psychiatric Association; 2013. http://www.psychiatryonline.org. Accessed July 19, 2016.
  3. Hirsch M, et al. Discontinuing antidepressant medications in adults. http://www.uptodate.com/home. Accessed May 17, 2016.
  4. Obsessive-compulsive disorder. National Alliance on Mental Illness. http://www.nami.org/Learn-More/Mental-Health-Conditions/Obsessive-Compulsive-Disorder. Accessed July 19, 2016.
  5. Moreland CS, et al. Effect of antidepressants on suicide risk in children and adolescents. http://www.uptodate.com/home. Accessed May 17, 2016.
  6. What is obsessive-compulsive disorder? American Psychiatric Association. https://www.psychiatry.org/patients-families/ocd/what-is-obsessive-compulsive-disorder. Accessed July 19, 2016.
  7. Obsessive-compulsive disorder in children and adolescents. American Academy of Child & Adolescent Psychiatry. http://www.aacap.org/AACAP/Families_and_Youth/Facts_for_Families/FFF-Guide/Obsessive-Compulsive-Disorder-In-Children-And-Adolescents-060.aspx. Accessed July 19, 2016.
  8. Obsessive-compulsive disorder. National Institute of Mental Health. http://www.nimh.nih.gov/health/topics/obsessive-compulsive-disorder-ocd/index.shtml. Accessed July 19, 2016.
  9. Simpson HB. Obsessive-compulsive disorder in adults: Epidemiology, pathogenesis, clinical manifestations, course, and diagnosis. http://www.uptodate.com/home. Accessed July 19, 2016.
  10. Mental health medications. National Institute of Mental Health. http://www.nimh.nih.gov/health/topics/mental-health-medications/index.shtml. Accessed May 16, 2016.
  11. AskMayoExpert. Obsessive-compulsive disorder (OCD). Minn.: Mayo Foundation for Medical Education and Research; 2015.
  12. 2014-2015 Research report: Psychiatry and psychology. Mayo Clinic. http://www.mayo.edu/pmts/mc0700-mc0799/mc0710-11.pdf. Accessed July 18, 2016.
  13. Denys D, et al. Deep brain stimulation for treatment of obsessive-compulsive disorder. http://www.uptodate.com/home. Accessed July 19, 2016.
  14. Mayo Clinic rankings & ratings. U.S. News & World Report. http://health.usnews.com/best-hospitals/area/mn/mayo-clinic-6610451/psychiatry. Accessed July 22, 2016.
  15. Whiteside SP (expert opinion). Mayo Clinic, Rochester, Minn. Aug. 16, 2016.
  16. Olsen MW (expert opinion). Mayo Clinic, Rochester, Minn. Aug. 17, 2016.