What Is OCD? Understanding Obsessive-Compulsive Disorder Obsessive-Compulsive Disorder (OCD) is a mental health condition in which a person experiences persistent, unwanted thoughts (obsessions) and feels driven to perform repetitive behaviors or mental rituals (compulsions) to reduce the distress those thoughts create. These patterns can feel difficult to break and often take up hours of a person's day, making it hard to focus on work, relationships, and the things that matt
