The three most common types of depression are major depression, bipolar disorder, and dysthymia. Within these three types, there are variations in the number of symptoms, their severity, and how long they last. There are also a number of other types of depression besides the three mentioned above. Some of these other types of depression include postpartum depression, cyclothymic disorder, and seasonal affective disorder.

An Overview of Types of Depression

Many people may think of depression as a symptom. However, depression is actually a type of illness. Similar to other illnesses, such as heart disease, depression can come in several forms (or types). The three most common depression types are:

 

• Major depression
• Bipolar disorder (also known as manic-depression)
• Dysthymia.

 

Within these different types of depression, there are variations in the number of symptoms, their severity, and how long they last. 

  

Types of Depression: Major Depression

• Clinical depression
• Unipolar depression
• Major depressive disorder.

 

A subtype of major depression is atypical depression. Atypical depression signs and symptoms are similar to those of major depression. Yet, unlike a person with major depression, someone who has atypical depression will also have one or more of the following:

• Significant anxiety
• Oversleeping
• Panic attacks
• Overeating or significant weight gain
• Increased sensitivity to rejection.