胎膜早破指临产前胎膜全层(绒毛膜和羊膜)发生自然破膜,是产科常见的并发症,临床诊断不难.但当破口小,流水量少时与假破水(仅绒毛膜破裂)难以区别,近二年我们采用阴道检查对临床上难以确诊的胎膜早破进行诊断,取得满意结果,现报告如下. Premature rupture of membranes refers to the natural premature rupture of membranes full of membranes (chorion and amniotic membrane), is a common complication of obstetrics, clinical diagnosis is not difficult, but when the small break, a small flow of water and fake broken water Membrane rupture) is difficult to distinguish the past two years, we use vaginal examination of clinically difficult to diagnose premature rupture of membranes to diagnose and obtain satisfactory results are as follows.