Postpartum psychosis is a severe mental illness that develops within the first 3 months after childbirth. It is a psychiatric emergency requiring specialist care. Risk factors include a family or personal history of mental illness, hormonal changes after delivery, and lack of social support. Symptoms include hallucinations, delusions, confusion, and mood disturbances. Management involves rapid hospitalization, medication, counseling, and ensuring the safety of the mother and baby. Breastfeeding is usually contraindicated during treatment.