Obsessive-compulsive disorder
Definition
Obsessive-compulsive disorder is an anxiety disorder in which people have thoughts, feelings, ideas, sensations (obsessions), or behaviors that make them feel driven to do something (compulsions). A person may have both obsessions and compulsions.
Alternative Names
Obsessive-compulsive neurosis; OCDCauses
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.
References
Moore DP, Jefferson JW. Handbook of Medical Psychiatry. 2nd ed. St. Louis, Mo: Mosby; 2004:167-170.
Rakel RE. Textbook of Family Practice. 6th ed. Philadelphia, Pa: WB Saunders; 2005:1348-1350.
Koran LM, Hanna GL, Hollander E, Nestadt G, Simpson HB. Practice guideline for the treatment of patients with obsessive-compulsive disorder. Am J Psychiatry, 2007;164:5-53.
Denys D. Pharmacotherapy of obsessive-compulsive disorder and obsessive-compulsive spectrum disorders. Psychiatr Clin North Am, 2006;29:553-584, xi.
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