Neurotic, Paranoid, Disordered, Angry, Clean, Repetitive, Obsessive, Arrogance, Irritating. Root Cause of Disease Obsessive-Compulsive Disorder, OCD, is an anxiety disorder and is characterized by recurrent, unwanted thoughts (obsessions) and/or repetitive behaviors (compulsions). Repetitive behaviors such as hand washing, counting, checking, or cleaning are often performed with the hope of preventing obsessive thoughts or making them…