Postpartum hemorrhage is a medical condition characterized by excessive bleeding following childbirth. It is defined as losing more than 500 milliliters of blood after a vaginal delivery or more than 1,000 milliliters after a cesarean section. This condition can occur immediately after delivery or within the first 24 hours, known as primary postpartum hemorrhage, or later, referred to as secondary postpartum hemorrhage. The causes of postpartum hemorrhage can include uterine atony, where the uterus fails to contract effectively, retained placental tissue, or trauma during delivery. Prompt medical attention is crucial to manage this condition, as it can lead to serious complications for the mother, including shock or even death if not treated quickly.