Obsessive compulsive disorder (OCD is a disorder in which people have recurring, unwanted thoughts, ideas or sensations known as obsessions that make them feel driven to do something repetitively known as compulsions. On the other hand, obsessive compulsive personality disorder (OCPD) is a mental condition in which a person is preoccupied with rules, orderliness and control. This table aims to help understand the differences between the two disorders.