The patient did not have back pain before medication abortion, back pain after medication abortion, consider the following possibilities, the treatment depends on the patient’s specific situation: first, the patient’s back pain caused by uterine infection after medication abortion. After the uterine cavity infection, the patient’s pelvic cavity infiltration and exudation of inflammatory mediators, the patient will have an inflammatory reaction resulting in low back pain. Need to choose antibiotic treatment, such as penicillin, cephalosporin, the ornidazole class of drugs. If the pain is more serious, you can cooperate with the painkillers, such as Yuanhu painkillers, resorcinol and so on. Secondly, the back pain caused by poor uterine regeneration. It can be treated with hysteronin and motherwort. Third, back pain caused by uterine residue. You can use progesterone medicated scraping, medicated scraping can be combined with blood circulation and blood stasis of traditional Chinese medicine, such as abdominal blood stasis particles treatment, can also be based on the situation of the uterus surgery. Fourth, the patient after the drug abortion lying down too long, resulting in the waist of the muscle stiffness, or the patient after the drug abortion, did not rest overworked. In this case, as long as appropriate activities or rest can be.