Are there specific types of depression?

Yes: People experience depression differently and there are different types such as "atypical", "melancholic", "treatment resistant", "recurrent", or "psychotic" among others. Some are recognized formally in the dsm-iv and some are not. Each may have different treatment approaches, however.

Yes: Some of the types are: major depression-single episode or recurrent, mild, moderate or severe, with or without psychosis; dysthymia; adjustment disorder with depressed mood; bipolar disorder-most recent episode depressed; schizoaffective disorder-depressed type; cyclothymia; bipolar ii disorder; depression due to a physical problem such as hypothyroidism and postpartum depression.

Depression: Agree with dr. Passer. Also, depression that does not fit any previous categories, called depression nos (not otherwise specified).

Depression: Agree with dr. Passer. Also, depression that does not fit any of the above classifications is termed depression nos (not otherwise specified).