“Obstetrics is Bloody Business”*Postpartum Hemorrhage:*Cunningham,et.al:Williams Obstetrics,21st ed.,2001PPH is the leading cause of death related to pregnancy worldwide 1 1Major causes of death for pregnancy women（maternal mortality)l lPostpartum hemorrhage（28%)l lheart diseasesl lpregnancy-induced hypertensionl l(or Amniotic fluid embolism)l linfection2 2Definition of PPHl lThe early PPH is defined as a blood loss exceeding 500ml after delivery of the infant2cm in length and be actively bleedi
