OCD — sometimes called The Doubting or "What If" Disease — stands for obsessive-compulsive disorder, a condition that torments the sufferer with unwanted thoughts (obsessions). Sometimes, these thoughts become so upsetting or overwhelming that the victim does whatever he can to relieve them. That's where compulsions come in. Here's an example: You can't shake the idea that you've been exposed to dangerous germs (obsession). So you wash repeatedly (compulsion). This section serves as an introduction to OCD and offers information about getting a diagnosis and pursuing treatment.