Less common but much more severe is postpartum psychosis.7 This affects an estimated 1 to 2 in 1,000 women (versus 1 in 10 for postpartum depression) and is much more likely to develop in women with a history of bipolar disorder. Postpartum psychosis usually manifests in hallucinations, delusions, and manic episodes. It will very likely need inpatient treatment, and should be taken extremely seriously.
