摘要：胎膜破裂，脐带脱出于宫颈口外者，称脐带脱垂。胎膜未破，而脐带位于先露旁侧或前方者称隐性脐带脱垂或脐带先露。脐带脱垂对胎儿危害极大，因宫缩时脐带在先露于盆壁之间受挤压，致脐带血液循环受阻，胎儿缺氧，发生严重的宫内窘迫，如血流完全阻断，胎儿可迅速窒息死亡。

    关键词：脐带脱垂；抢救；产科

    Abstract：The rupture of membranes， umbilical cord prolapse in cervical outlets， umbilical cord prolapse. Membranes unsolved， the umbilical cord is located in the presentation side or front says invisible umbilical cord prolapse or umbilical cord presentation. Great harm to the fetus umbilical cord prolapse， because of the contractions squeezed between umbilical cord in the dew in the basin wall ......