对２６ 例晚期产后出血患者临床资料进行分析，胎盘胎膜残留５０ ％ ，子宫复旧不良４２％ ，剖宫产术后切口裂开３．８％ ，感染３．８ ％ ；２５ 例保守治疗痊愈，１ 例行子宫次全切术。提示，胎盘胎膜残留，子宫复旧不良为晚期产后出血的主要原因；正确处理第三产程，提高剖宫产技术是防止晚期产后出血的关键。 The clinical data of 26 cases of postpartum hemorrhage were analyzed. The placental fetal membrane remained 50%, the uterine involution was poor, and the incision 3.8% after cesarean section. The infection was cured in 25 cases, 1 routine subtotal hysterectomy. Prompts, placental residual fetal membranes, uterine involution of the late postpartum hemorrhage is the main reason for poor; correct treatment of the third stage of labor, improve caesarean section technology is to prevent late postpartum hemorrhage key.