The use of motherwort to eliminate the residue in the uterine cavity, usually 3-5 days can be used, the use of time should not exceed 7 days. Motherwort can activate blood circulation and remove blood stasis, also can promote uterine contraction, for eliminating the residue in the uterine cavity after medical abortion or abortion has a very good effect, it is recommended that patients use motherwort as early as possible, patients can use motherwort on the day after abortion or medical abortion, because on the day of the abortion, the patient’s uterine residue of the meconium is relatively fresh, and the relationship with the uterine wall is not particularly close, the use of motherwort in 3-5 days, it is very easy to promote the discharge of the residue, and if patients do not use motherwort at the early stage of abortion, it is generally 3-5 days. Very easy to be able to promote the discharge of residues, if the patient did not use motherwort in the early abortion review found that there is a uterine cavity residues and then use motherwort, the effect will not be very good. Because with the prolongation of the abortion time, the residue in the uterine cavity gradually mechanized and the uterine wall of the dense connection between the motherwort is not enough to make the residue elimination, need to clear the uterus surgery to solve.