Abstract: To investigate correlative factor and prevention and treatment of postpartum hemorrhage, 317 cases of postpartum hemorrhage were reviewed. The incidence of postpartum hemorrhage, during January, 1986 to June, 1999 ,were 1.53%(317/20 768). The chief reason of postpartum hemorrhage was uterine inertia, taking up 53.31%(169/317). The incidence that caesarean section occurred postpartum hemorrhage were 2.41%(151/6 278) of the cases, which was higher than vaginal delivery(P<0.01). Conclusion: Reducing the uterone inertia and caesarean seclion is the key to reduce the incidence of postpartum hemorrhage.

Key words: postpartum hemorrhage, reason of postpartum hemorrhage, time of postpartum hemorrhage