Major depressive disorder (MDD) is classified under which type of disorder?

Major depressive disorder (MDD) is classified as a mood disorder because it primarily affects a person's emotional state and is characterized by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities. Mood disorders typically encompass conditions that significantly impact an individual's overall emotional well-being, such as depression and bipolar disorder.

In the context of mood disorders, MDD is diagnosed based on specific criteria that focus on the duration and severity of depressive episodes. This classification helps professionals understand the underlying emotional processes and tailor appropriate treatment interventions, such as psychotherapy or pharmacotherapy, aimed at improving mood regulation and overall mental health.

The other conditions listed—anxiety disorders, psychotic disorders, and personality disorders—have their distinct characteristics and diagnostic criteria, focusing on different aspects of mental health. Therefore, recognizing MDD as a mood disorder is essential for effective diagnosis and treatment.