Tuesday 13 May 2014

Obsessive–compulsive disorder - Wikipedia, the free encyclopedia

Obsessive–compulsive disorder - Wikipedia



Obsessive–compulsive disorder (OCD) is an anxiety disorder characterized by intrusive thoughts
that produce uneasiness, apprehension, fear, or worry; by repetitive
behaviors aimed at reducing the associated anxiety; or by a combination
of such obsessions and compulsions. Symptoms of the disorder include excessive washing or cleaning; repeated checking; extreme hoarding; preoccupation with sexual, violent or religious thoughts; relationship-related obsessions; aversion to particular numbers; and nervous rituals, such as opening and closing a door a certain number of times before entering or leaving a room. These symptoms can be alienating and time-consuming, and often cause severe emotional and financial distress. The acts of those who have OCD may appear paranoid and potentially psychotic.
However, OCD sufferers generally recognize their obsessions and
compulsions as irrational and may become further distressed by this
realization.


Obsessive–compulsive disorder affects children and adolescents, as
well as adults. Roughly one third to one half of adults with OCD report a
childhood onset of the disorder, suggesting the continuum of anxiety
disorders across the lifespan.[1]


The phrase obsessive–compulsive has become part of the English
lexicon, and is often used in an informal or caricatured manner to
describe someone who is excessively meticulous, perfectionistic, absorbed, or otherwise fixated.[2] Although these signs are present in OCD, a person who exhibits them does not necessarily have OCD, but may instead have obsessive–compulsive personality disorder (OCPD), an autism spectrum disorder, disorders where perseveration is a possible feature (ADHD, PTSD, bodily disorders or habit problems),[3] or no clinical condition.


Despite the irrational behaviour, OCD is sometimes associated with above-average intelligence.[4][5]
Its sufferers commonly share personality traits such as high attention
to detail, avoidance of risk, careful planning, exaggerated sense of
responsibility and a tendency to take time in making decisions.[6] Multiple psychological and biological factors may be involved in causing obsessive–compulsive syndromes. Standardized rating scales such as Yale–Brown Obsessive Compulsive Scale can be used to assess the severity of OCD symptoms.[7]