Ninecasesaboutplacentalabruptioninbackutericausedbypregancy－inducedhypertensionsyndrome胎盘早利为妊娠高血压综合征（简称好高征）严重并发症之一，而位于子宫后壁的胎盘早剥因其临床表现不典型，早期诊断困难，故易延误治疗，造成严重并发症，危及患者生命。现将1992 Ninecasesaboutplacentalabruptioninbackutericausedbypregancy-inducedhypertensionsyndrome placental early pregnancy is one of the serious complications of pregnancy-induced hypertension (referred to as hyperandrocyte syndrome), and located in the posterior uterine wall because of its clinical manifestations of atypical early placental abruption, early diagnosis is difficult, so easy to delay treatment, resulting in Serious complications, endangering patients’ lives. Now 1992