宫颈扩张术是经阴道行宫腔手术的首要操作步骤之一,无论是人工流产、诊断性刮宫、放环、取环都必不可少,在行此类手术中,经常可遇见多种原因引起的宫颈扩张困难,致使下一步操作停滞或延缓操作时间。我院1992年9月—2006年9月试用地西泮扩张宫颈306例,对其临床疗效与作用机制进 Cervical dilatation is one of the most important operation steps of transvaginal uterine surgery. Whether abortion, diagnostic curettage, put the ring, take the ring are essential, in such operations, often can meet a variety of causes Difficult cervical expansion, resulting in the next step or delay the operation of the operation. Our hospital from September 1992 -2006 in September trial diazepam 306 cases of cervical dilatation, its clinical efficacy and mechanism of action