Obsessive-compulsive disorder (OCD), a type of anxiety disorder, is a potentially disabling illness that traps people in endless cycles of repetitive thoughts and behaviors.
People with OCD are plagued by recurring and distressing thoughts, fears, or images (obsessions) that they cannot control.
The anxiety (nervousness) produced by these thoughts leads to an urgent need to perform certain rituals or routines (compulsions). The compulsive rituals are performed in an attempt to prevent the obsessive thoughts or make them go away.