Postpartum depression.

Though postpartum depression has been observed for years, research into it has increased recently, especially in England. Distinguishing the rarer, severe puerperal psychosis from milder, more frequent "maternity blues" has provided a clearer framework for new research. Hormonal changes, biogenic amines, stress, and lack of social support have been proposed as explanations for postpartum depression, but the etiology is still not clear. Hormones, tranquilizers, and antidepressants are some modern therapeutic measures employed, whereas electroconvulsive shock therapy was once the most frequent therapy. Fortunately, the mortality rate for childbirth-related psychiatric illness is low.