The comparison of postpartum with non-postpartum depression: a rose by any other name.

A strong tradition exists in the psychiatric literature to consider postpartum depression a distinct diagnosis. However, the empirical evidence indicates that, in terms of etiology and relapse rates, postpartum depression is indistinguishable from non-postpartum depression. Symptomatically, postpartum depression seems to involve a milder disturbance, suggesting that it is best seen as an adjustment disorder. This paper summarizes the empirical evidence relevant to the distinct diagnosis question, and considers the benefits to be derived from challenging the traditional view of postpartum depression.