Method:Using retrospectively analysis method and doing the comparative analysis between the 102 cases of hypamnion group and 100 cases normal amniotic fluid group.
方法:采用回顾性分析方法,对羊水过少组102例和羊水正常组100例进行对比分析。
Results:The former needed less time, and complemented retention of placenta and fatal membranes, hypamnion of late pragracy, dead fetus, failure of induction developed in induction by rivanolum.