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Concept
Obsessive–compulsive disorder
Summary
Obsessive–compulsive disorder (OCD) is a mental and behavioral disorder in which an individual has intrusive thoughts (an obsession) and feels the need to perform certain routines (compulsions) repeatedly to relieve the distress caused by the obsession, to the extent where it impairs general function.
Obsessions are persistent unwanted thoughts, mental images, or urges that generate feelings of anxiety, disgust, or discomfort. Some common obsessions include fear of contamination, obsession with symmetry, the fear of acting blasphemously, the sufferer's sexual orientation, and the fear of possibly harming others or themselves. Compulsions are repeated actions or routines that occur in response to obsessions to achieve a relief from anxiety. Common compulsions include excessive hand washing, cleaning, counting, ordering, avoiding triggers, hoarding, neutralizing, seeking assurance, praying, and checking things. People with OCD may only perform mental compulsions, this is called primarily obsessional obsessive–compulsive disorder (Pure O). Many adults with OCD are aware that their compulsions do not make sense, but they perform them anyway to relieve the distress caused by obsessions. Compulsions occur often, typically taking up at least one hour per day and impairing one's quality of life. Compulsions cause relief in the moment, but cause obsessions to grow over time. More than three million Americans suffer from OCD. According to Mercy, approximately 1 in 40 U.S. adults and 1 in 100 U.S. children have OCD.
The cause of OCD is unknown. There appear to be some genetic components, and it is more likely for both identical twins to be affected than both fraternal twins. Risk factors include a history of child abuse or other stress-inducing events; some cases have occurred after streptococcal infections. Diagnosis is based on presented symptoms and requires ruling out other drug-related or medical causes; rating scales such as the Yale–Brown Obsessive–Compulsive Scale (Y-BOCS) assess severity.
Official source
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