Abstract
Introduction: According to the World Health Organization, in 2020, there were 287,000 maternal deaths, with postpartum hemorrhage (PPH) accounting for 27% and the leading cause of maternal mortality globally. PPH is defined as a blood loss of 500mL after normal delivery and 1000mL after cesarean section. The first "Global Summit on Postpartum Haemorrhage" concluded that there was a need f…