General Information: The Postpartum Period
During the postpartum period, about 85% of women experience some type of mood disturbance. For most the symptoms are mild and short-lived; however, 10 to 15% of women develop more significant symptoms of depression or anxiety. Postpartum psychiatric illness is typically divided into three categories: (1) postpartum blues (2) postpartum depression and (3) postpartum psychosis. It may be useful to conceptualize these disorders as existing along a continuum, where postpartum blues is the mildest and postpartum psychosis the most severe form of postpartum psychiatric illness.
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Postpartum Psychosis
Postpartum psychosis is the most severe form of postpartum psychiatric illness. It is a rare event that occurs in approximately 1 to 2 per 1000 women after childbirth. Its presentation is often dramatic, with onset of symptoms as early as the first 48 to 72 hours after delivery. The majority of women with puerperal psychosis develop symptoms within the first two postpartum weeks.
It appears that in most cases, postpartum psychosis represents an episode of bipolar illness; the symptoms of puerperal psychosis most closely resemble those of a rapidly evolving manic (or mixed) episode. The earliest signs are restlessness, irritability, and insomnia. Women with this disorder exhibit a rapidly shifting depressed or elated mood, disorientation or confusion, and erratic or disorganized behavior. Delusional beliefs are common and often center on the infant. Auditory hallucinations that instruct the mother to harm herself or her infant may also occur. Risk for infanticide, as well as suicide, is significant in this population.