How do ocd and depression differ?

Co-occuring: Ocd and depression frequently and in my experience almost always over lap if ocd is primary. Its hard not to be depressed if ocd is significant or both could be primary and thus both need treatment. A good assessment is useful to understand.

OCD: OCD is obsessive compulsive disorder, which is comprised of obsessions (repeating unwanted thoughts) and compulsions (ritualistic behaviors to help deal with those thoughts) such as washing hands repeatedly, constantly cleaning, checking locks, and other similar behaviors. Often the emotions behind OCD are based in fear and/or anger that is unresolved and even unverbalized.