Purpose: TAI DONG BU AN, in the western medicine called threatening miscarriage,gynaecology is common diseases, usually abortion, warning signs of abortion. Abortion, isharmful not only to women's physical and mental health, also may give family brought aseries of problems and contradictions, and this will hurt the stability of the society. So to belooking for effective methods to control abortion, it not only has positive clinical significance,but also has a good social significance.This article mainly dis...