Premenstrual Dysphoric Disorder is another form of depression occurring exclusively in women that can occur in about the week or so prior to the menstrual period in which a woman may experience symptoms of depression transiently. So more sadness, irritability, numbness, and that usually goes away a week or two later. The treatment model for that would be different. Sometimes depression can occur specifically around the time of childbirth, Peripartum Depression, either before childbirth or in the weeks following childbirth. And this again is a unique form of depression that has many similarities to the other types but is treated distinctly as well.