Obsessive-compulsive disorder (OCD) is an anxiety disorder in which time people have recurring, unwanted thoughts, ideas or sensations that make them feel driven to do something repetitively. People with OCD may have symptoms of obsessions, compulsions, or both. These symptoms can interfere with all aspects of life, such as work, school, and personal relationships. The repetitive behaviors, such as hand washing, checking on things or cleaning, can significantly interfere with a person’s daily activities and social interactions.