What are the different types of mood disorders?

These are the most common types of mood disorders:

  • Major depression. Having less interest in usual activities, feeling sad or hopeless, and other symptoms for at least 2 weeks may indicate depression.
  • Dysthymia. This is a chronic, low-grade, depressed, or irritable mood that lasts for at least 2 years.
  • Bipolar disorder. This is a condition in which a person has periods of depression alternating with periods of mania or elevated mood.
  • Mood disorder related to another health condition. Many medical illnesses (including cancer, injuries, infections, and chronic illnesses) can trigger symptoms of depression.
  • Substance-induced mood disorder. Symptoms of depression that are due to the effects of medicine, drug abuse, alcoholism, exposure to toxins, or other forms of treatment.

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https://www.hopkinsmedicine.org/health/conditions-and-diseases/mood-disorders