Obsessive-compulsive spectrum disorders are a group of similar psychiatric disorders. These disorders are characterized by repetitive thoughts, distressing emotions, and compulsive behaviors. The specific types of thoughts, emotions, and behaviors vary according to each disorder. These disorders are:
1. obsessive-compulsive disorder (OCD);
2. body dysmorphic disorder (BDD);
3. hoarding disorder;
4. hair-pulling disorder (trichotillomania); and,
5. skin-picking disorder (excoriation).
Obsessions are recurrent and persistent thoughts, urges, or images that are experienced as intrusive and unwanted. Common obsessional themes include concerns about contamination; harm happening to oneself or others; intrusive sexual thoughts; religious preoccupation and rituals; repeated and excessive doubts about safety and security; the need for symmetry and order; and perfectionism. Because obsessions are unwanted, they create anxiety and distress ...
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