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  • Persistent Depressive Disorder (Dysthymia)

Persistent Depressive Disorder

Persistent Depressive Disorder (PDD), formerly known as dysthymia, is a chronic form of depression diagnosed when an individual experiences a depressed mood for most of the day, on more days than not, for a minimum of two years. In addition to the persistent low mood, a diagnosis requires at least two other symptoms of major depressive disorder. Individuals with PDD are chronically sad and melancholic, but their symptoms do not meet the full criteria for a major depressive episode. However, it is possible for someone with PDD to also experience periods of full-blown major depressive disorder.

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Learn After
  • Diagnostic Statistical Manual, Fifth Edition: Depressive Disorders

  • Individuals at the Most Risk of Persistent Depression Disorder:

  • Psychological Disorders that Can Co-occur with Persistent Depressive Disorder

  • Sub-types of Persistent Depressive Disorder (Dysthymia)

  • Persistent Depressive Disorder Specifiers

  • Sleep Studies on Persistent Depressive Disorder

  • The Consequences of Having Persistent Depressive Disorder

  • For the past three years, an individual has felt a persistent sense of sadness and emptiness. While they are still able to go to work and manage daily responsibilities, they often feel fatigued, have trouble concentrating, and struggle with feelings of hopelessness. They describe their mood as 'living under a gray cloud, but not a full-blown storm.' They have not experienced any periods of unusually elevated mood or energy. Based on the chronic nature and specific symptoms described, which diagnosis is the most appropriate?