
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Mood disorder
Introduction
Overview
A mood disorder is a condition whereby the prevailing emotional mood is distorted or inappropriate to the circumstances.
The two major types of mood disorders are depression (or unipolar depression) and bipolar disorder.
- Depression (or unipolar depression), including subtypes:
- Major Depression
- Major Depression (Recurrent)
- Major Depression with psychotic symptoms (psychotic depression)
- Dysthymia ( similar but milder form of MDD)
- Postpartum depression
- Bipolar disorder, a mood disorder formerly known as “manic depression” and described by alternating periods of mania and depression (and in some cases rapid cycling, mixed states, and psychotic symptoms). Subtypes include:
- Bipolar I
- Bipolar II
- Cyclothymia ( similar but milder form of BD)
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]: Christeen Henen
