Obsessive Compulsive Disorder Obsessive-Compulsive Disorder , more commonly known as OCD , is a common, chronic, and long-lasting disorder and is characterized by way of persistent, undesired thought processes (obsessions) and/or repeating actions (compulsions). Obsession, in this case, is highly unpleasant as the individual is compelled to repeat certain behaviors again and again. The condition, most of the time, is anxiety-related and the thoughts are unwanted and intrusive . Sufferers often understand that these thoughts are irrational, but by performing compulsive behavior, they believe they will be cured or will be relieved. Recurring actions such as hand washing (to avoid catching germs), counting numbers, checking things over, or cleaning are frequently carried out with the anticipation of avoiding compulsive thoughts or making them disappear altogether. This is to avoid their obsession turning into reality. OCD is a common mental condition that affects 2.5 million adults or