1992年8月～1993年1月,在我院门诊就诊的200例早孕妇女吸宫前应用宫颈扩张棒及直接应用扩宫器扩张宫颈的对比观察得知:应用宫颈扩张棒组在吸宫术时不需扩宫者初孕妇占70.8％,经产妇占71.9％,而对照组不须扩宫者只占6.3％,应用宫颈扩张棒组扩宫困难者为“0”,而对照组高达12.3％;应用宫颈扩张棒组吸宫时发生人工流产综合反应者占3.1％,而对照组最高占31.3％。说明在吸宫前应用宫颈扩张棒扩宫能大大降低在吸宫术时的扩宫率,减少扩宫困难和人工流产综合反应及宫颈粘连的发生。 1992 August ~ 1993 January, outpatient clinic in our hospital 200 cases of pregnant women before the application of cervical dilation of cervical dilatation rods and dilatation of cervical dilatation directly observed that: the application of cervical dilatation bar group in the suction aspiration 70.8% of primiparous women did not need to have a dilatation of the uterus, while 71.9% of the women did not require dilatation of the uterus in the control group, and 0 was difficult to expand the dilatation of cervical dilatation rod group, while those in the control group were as high as 12.3 %; Cervical dilation stick group aspiration induced abortion accounted for 3.1% of the total, while the highest control group accounted for 31.3%. Description of the application of cervical dilation Palace dilatation before dilatation can greatly reduce the dilatation rate in the suction aspiration, to reduce the difficulties of dilation and abortion combined reaction and cervical adhesions.