Postpartum hemorrhage is heavy bleeding after the birth of your baby. Postpartum hemorrhage (also called PPH) is when a woman has heavy bleeding after giving birth. Postpartum bleeding or postpartum hemorrhage (PPH) is often defined as the loss of more than 500 ml or 1,000 ml of blood within the first 24 hours following. What is postpartum hemorrhage? Postpartum hemorrhage is more bleeding than normal after the birth of a baby. 2,3 The American College of Obstetricians and Gynecologists defines early postpartum hemorrhage as at least 1,000 mL total blood loss or loss.