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Obsessive-Compulsive Disorder (OCD)

An Obsessive-Compulsive Disorder diagnosis requires obsessions and compulsions that are "time-consuming" (take more than one hour each day) and are not explicable by other diagnosis, or by virtue of substance use or medical condition. 

Obsessions are thoughts that are unwanted, intrusive and persistent and the patient seeks to cope by performing a compulsion.

Compulsions are unvaried, ritualized procedures (like excessive hand-washing, locking and unlocking and relocking of door; "irrational" behaviors like avoiding cracks in sidewalk; repetitively touching a shoe or hairpiece; fervent praying, rote recitations, etc) that are necessary to counteract the obsessive trigger.