Postpartum depression (PPD), also called postnatal depression, is a form of clinical depression which can affect women, and less frequently men, after childbirth. Studies report prevalence rates among women from 5% to 25%, but methodological differences among the studies make the actual prevalence rate unclear PPE is caused by sleep deprivation coupled with hormonal changes in the women's body shortly after giving birth and may be mild or severe. Most cases noted with women who have babies with severe colic or other underlying causes that keeps abnormal sleep schedules. Not the same as postpartum depression, but can be classified as a postpartum depression even though depression is usually only caused from extreme fatigue. Medical treatment is minimal. Can last between 1 and 20 days and responds with getting adequate amounts of sleep.