As a mental health professional with a focus on psychology and psychiatry, I have dedicated my career to understanding the complexities of mental health disorders, particularly depression. It's a nuanced and multifaceted condition that can manifest in various forms. The number of different types of depression is not fixed, as new research and understanding continue to evolve. However, for the purpose of clarity and based on current clinical knowledge, I will outline several recognized subtypes and their characteristics.

Major Depressive Disorder is the most well-known form of depression, characterized by persistent feelings of sadness, loss of interest in activities, and a significant impact on daily life.

Dysthymia, also known as persistent depressive disorder, is a milder but longer-lasting form of depression that can last for years without remission.

Postpartum Depression affects some women after childbirth and is marked by intense sadness and anxiety that can interfere with bonding and caring for the newborn.

Seasonal Affective Disorder (SAD) is a type of depression that occurs with a seasonal pattern, typically in the winter months, and is thought to be related to changes in daylight exposure.

Bipolar Depression is a part of bipolar disorder, where individuals experience episodes of depression as well as episodes of mania or hypomania.

Atypical Depression is a subtype where individuals may experience mood reactivity and increased appetite and sleep, which are atypical symptoms compared to the more common depressive symptoms.

Premenstrual Dysphoric Disorder (PMDD) is a severe form of premenstrual syndrome that includesread more >>

9 Different Types of Depression1 / 10 9 Different Types of Depression. ... 2 / 10 Major Depression: A Common Type of Depression. ... 3 / 10 Dysthymia: The Common Depression Type You May Not Know. ... 4 / 10 Postpartum Depression: Sadness After Having a Baby. ... 5 / 10 Seasonal Affective Disorder (SAD): Extreme Winter Weariness.More items...read more >>