Obsessive compulsive disorder is quite a common thing that plagues a lot of people today. It is not an isolated case. You or your loved ones may have it as well. Knowing what you are up against can help you get better equipped for fighting this debilitating battle against your thoughts and actions. Learn what obsessive compulsive disorder is, how it differs from a similarly named disorder called obsessive compulsive personality disorder (OCPD). Learn how obsessive compulsive disorder affects adults and children, and what you can do to remove or at least lessen the torment caused by it.