Persistent depressive disorder

PDD; Chronic depression; Depression - chronic; Dysthymia

Persistent depressive disorder (PDD) is a chronic (ongoing) type of depression in which a person's moods are regularly low. But, symptoms are not as severe as with major depression.

Persistent depressive disorder used to be called dysthymia.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

When to Contact a Medical Professional