产后出血(PPH)是产科严重并发症,产后迅速大量的失血可导致失血性休克,危及产妇生命。当前,PPH依然是孕产妇死亡的首位因素。由于我国剖宫产率明显上升,剖宫产术中发生难治性大出血例数也相应增多,其病因主要为前置胎盘、胎盘植入、双胎、巨大儿、子宫收缩乏力等。对难治性PPH制定适时正确的治疗方案是成功挽救患者的关键。国内外资料显示,B-Lynch缝合在子宫收缩乏力所致产后出血中有良好的效果,在前置胎盘、胎盘植入等所致产后 Postpartum hemorrhage (PPH) is a serious complication of obstetrics, rapid postpartum blood loss can lead to hemorrhagic shock, endangering the lives of mothers. Currently, PPH remains the first factor in maternal mortality. Due to the significant increase of cesarean section rate in our country, the incidence of refractory hemorrhage in cesarean section increased correspondingly. The main causes of cesarean section were placenta previa, placenta accreta, twins, giant children and uterine atony. The development of timely and correct treatment of refractory PPH is the key to successful patient salvage. Domestic and foreign data show that B-Lynch suture in the uterus caused by postpartum hemorrhage due to fatigue have a good effect, in the placenta previa, placenta accreta and other postpartum