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Obsessive-compulsive disorder - Overview

Alternative Names

Obsessive-compulsive neurosis; OCD

Definition of Obsessive-compulsive disorder:

Obsessive-compulsive disorder is an anxiety disorder in which people have unwanted and repeated thoughts, feelings, ideas, sensations (obsessions), or behaviors that make them feel driven to do something (compulsions).

Often the person carries out the behaviors to get rid of the obsessive thoughts, but this only provides temporary relief. Not performing the obsessive rituals can cause great anxiety.

Causes, incidence, and risk factors:

Obsessive-compulsive disorder (OCD) is more common than was once thought. Most people who develop it show symptoms by age 30.

There are several theories about the cause of OCD, but none have been confirmed. Some reports have linked OCD to head injury and infections. Several studies have shown that there are brain abnormalities in patients with OCD, but more research is needed.

About 20% of people with OCD have tics, which suggests the condition may be related to Tourette syndrome. However, this link is not clear.

  • Reviewed last on: 2/11/2010
  • Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; and Michelle Benger Merrill, MD, Instructor in Clinical Psychiatry, Department of Psychiatry, Columbia University Medical Center, New York, NY. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Blais MA, Smallwood P, Groves JE, Rivas-Vazquez RA. Personality and personality disorders. In: Stern TA, Rosenbaum JF, Fava M, Biederman J, Rauch SL, eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, Pa: Mosby Elsevier; 2008:chap 39.

Feinstein RE, Connelly JV. Personality disorders. In: Rakel RE, ed. Textbook of Family Medicine. 7th ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 60.

Koran LM, Hanna GL, Hollander E, Nestadt G, Simpson HB, et al. Practice guideline for the treatment of patients with obsessive-compulsive disorder. Am J Psychiatry. 2007;164:5-53.

Stein DJ, Denys D, Gloster AT, et al. Obsessive-compulsive disorder: diagnostic and treatment issues. Psychiatr Clin North Am. 2009;32:665-685.

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