Obsessive Compulsive Disorder
Obsessive Compulsive Disorder (OCD) usually begins in adolescence and young adulthood and is seen in as many as 1 in 200 children and adolescents. OCD is characterized by repeated obsessions and/or compulsions that are extreme enough to cause severe discomfort.
Obsessions are unrealistic or irrational thoughts, impulses or images that are recurrent and persistent and cause extreme anxiety or distress. Compulsions are repetitive behaviors or rituals (like hand washing, hoarding, excessively keeping things in order, checking something over and over) or mental acts (like counting, or repeating words silently).