Title: Prevention and care of postpartum hemorrhage ABSTRACT Objectives: Postpartum hemorrhage related risk factors of postpartum hemorrhage prevention and reduction measures with a view to proper treatment, the prevention of postpartum hemorrhage, reduction of maternal mortality, maternal prenatal and intrapartum monitoring, close observation of vaginalbleeding, uterine contraction, timely detection and timely treatment for postpartum hemorrhage, the reasons should be identified, taken into account, choose the best option to reduce the bleeding rate.Really do to prevent postpartum hemorrhage, can reduce the incidence of postpartum out of the bottle.Only after the timely rescue of postpartum hemorrhage care, can improve the success rate, saving the lives of patients and reduce complications. Methods: January 2008 ~ December 2009 in our hospital from 3487 cases of maternal obstetric delivery were retrospectively analyzed, with postpartum hemorrhage volume measurement, analysis of selected postpartum hemorrhage associated with the main risk factors, and further studyThe pre-treatment measures.Results: 3487 cases of maternal clinical data, found there were 116 cases of postpartum hemorrhage, accounting for 3.31%.L1 single-factor analysis of the factors were significant, multi-factor analysis in five selected into the regression model, ordered by size OR value were uterine atony (OR = 16.248,95% CI14.306 ~ 18.809), placenta previa (OR = 11.217,95% CI 8.734 ~ 14.407), placenta accreta, implantation, retention (OR = 3.116,95% CI 2.348 ~ 4.134), a huge children (OR = 2.932,95% CI 2.426 ~ 3.543), cesarean section (OR = 1.945,95% CI 1.654 ~ 2.287) (OR occurrence of the value of the larger shows higher risk of postpartum hemorrhage).Conclusion: Postpartum hemorrhage is the most common obstetric complications, the most critical one, a higher incidence (3.31%), to strengthen prevention and control uterine atony, make family planning to reduce unwanted pregnancies, cesarean section strictly controlled to reducesignificant incidence of children, reducing postpartum hemorrhage and maternal mortality plays an important role