Depression overview.

Depression is a common condition that often remains undiagnosed and untreated; however, symptoms are more likely to be recognized today than in past decades. Survey data suggest that female, nonwhite patients are more likely to report depressive symptoms, especially those who are less educated, poor, and covered by Medicaid. Depression may be a finding suggestive of dysthymic disorder, minor or major depressive disorder, seasonal affective disorder, episodic depression, or a sign of an associated mood disorder, such as bipolar disorder. Many effective treatments are available that are well tolerated. This article outlines the diagnostic approach used in primary care, as well as the different treatment options available for this condition. Depression can have serious consequences and must be treated appropriately.