This document discusses postpartum haemorrhage (PPH), which is a leading cause of maternal mortality worldwide. PPH is defined as blood loss exceeding 500 ml following childbirth. Causes of PPH include uterine atony, lacerations, retained placenta or tissue. Uterine atony, where the uterus fails to contract properly after delivery, is the most common cause. Management of PPH depends on the cause but may include uterotonic drugs, bimanual compression of the uterus, surgical compression sutures, ligation of arteries, or hysterectomy in severe cases. It is important to recognize and treat PPH promptly to reduce mortality.