Obsessive-Compulsive Disorder — Obsessive-compulsive disorder is a psychiatric condition involving obsessions, compulsions, or both that cause significant distress, consume substantial time, or interfere with functioning. Obsessions are recurring unwanted thoughts, urges, or images, while compulsions are repetitive behaviors or mental acts performed in response to distress or rigid rules. Ordinary preferences for cleanliness, occasional checking, and unwanted thoughts alone do not establish the disorder.

Added November 6, 2026