The main function of Motherwort is to clear heat and remove toxins, activate blood circulation and remove blood stasis, and its ability to kill the activity of the embryo also promotes the contraction of the patient’s uterus. Therefore, when patients take motherwort after pregnancy, it may cause miscarriage, especially when patients have bleeding, abdominal pain and other aura of miscarriage after pregnancy, there is a greater possibility of miscarriage after taking motherwort. If the patient does not have a pregnancy requirement after pregnancy, then motherwort can be added to the abortion medication, which can promote the death and expulsion of the embryo from the patient’s body. Motherwort can also be added after medication or abortion to promote the expulsion of stagnant blood and residual membranes from the uterine cavity. However, motherwort will not be used alone for abortion in the clinic, and if the patient is pregnant and has the requirement of pregnancy, motherwort should never be taken.