This is the condition most people think about when considering depression. MDD is marked by five or more symptoms of depression lasting for at least two weeks, which can range in intensity from mild to severe.
Changing symptoms that accompany menstruation are expected, but premenstrual dysphoric disorder occurs when the repeated hormonal changes create a drastic shift in thoughts, feelings, and behaviors. In many cases, these symptoms make it impossible for a person to maintain relationships and responsibilities.
People may also experience depressive symptoms triggered by prior drug or medication use, while others will note other symptoms of depression that do not meet the criteria for a full depressive diagnosis.
Rather than a period of depression that recur and remit, persistent depressive disorder represents a more stable and consistent level of depression. Symptoms may not be as intense as other disorders, but the duration will be very uncomfortable (at least 2 years in adults and one year in children).
As a disorder that targets children and teens, DMDD presents as anger and irritability more than sadness and low motivation. Kids with this condition may frequently tantrum and engage in unwanted outbursts.
Other mental health disorders