中断中期妊娠的方法很多,但至今尚无安全、可靠、简易的方法。现将我院和我州各医院所进行的水囊、天花粉羊膜腔内注入、10％盐水羊水交换、探条等四种引产方法,从1971～1977年末期间的1,016例进行总结如下。 There are many ways to interrupt mid-term pregnancy, but so far there is no safe, reliable and easy way. Now in our hospital and I state hospitals were carried out within the balloon, pollen amniotic cavity injection, 10% saline amniotic fluid exchange, probe and other four kinds of induced labor method, from 1971 to 1977, the end of 1,016 cases are summarized as follows.