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Psychiatry

Obsessive-Compulsive Disorder

NICE CG31 — stepped care, exposure + response prevention CBT, SSRI / clomipramine, longer treatment durations than depression.

Source: NICE CG31 (2005, updated)

Step 1 of ~2
info

Diagnose

Obsessions (intrusive, unwanted thoughts / images / urges) + compulsions (repetitive behaviours / mental acts performed to reduce anxiety) — recognised as own thoughts (vs psychotic) + cause distress / impairment / time-consuming (>1h/day). Use Y-BOCS (severity 8–15 mild; 16–23 moderate; 24–31 severe; ≥32 extreme). Common subtypes: contamination + washing, checking, symmetry, intrusive (taboo) thoughts, hoarding (now distinct in DSM-5).

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only. Always apply local guidelines and clinical judgement.