An obsession is an intrusive thought while a compulsion is a standardized and recurrent behavior. It becomes a disorder when the symptoms interfere with the person’s relationships, occupational functioning and social life.
Obsessive Compulsive Disorder (OCD) is represented by a combination of symptoms including intrusive thoughts, rituals, preoccupations, and compulsions.
Sometimes obsessiveness can appear as part of a personality style. This can be in the form of perfectionism, excessive devotion to work, rigidity or stubbornness. When this happens we consider the possibility of Obsessive Compulsive Personality Disorder.
OCD can be treated with Psychotherapy and medication.