OCD
OCD involves intrusive, unwanted thoughts (obsessions) and repetitive behaviors (compulsions) performed to reduce distress.
Symptoms
Fears of contamination, harm, or disorder; compulsions like washing, checking, counting, or mental rituals.
Causes and risk
Genetics, brain circuitry differences, and stressful events.
How it is evaluated
Assessment of obsession and compulsion patterns, severity, daily impact, and ruling out conditions that mimic OCD.
Treatment
Exposure and response prevention (ERP) therapy is first-line. SSRIs are effective for many. Combination approaches work best.