What to know about postpartum psychosis, which can affect a new mom's sense of reality

Postpartum psychosis is a rare, dangerous mental health emergency affecting 1 to 2 per 1,000 women after delivery. It disrupts a mother's sense of reality and can occur to anyone, though risks increase for those with specific mental health conditions. This condition is currently a key question in the Massachusetts murder trial of Lindsay Clancy, where experts examine whether postpartum psychosis drove the mother to kill her three children during this critical medical crisis.