There are common abortion, painless abortion and medication abortion, all three of which are harmful to the uterus, and the size of the damage to the uterus has a lot to do with the individual’s constitution and the doctor performing the surgery. In comparison, the least harmful to the uterus is the ordinary abortion, because painless abortion is sometimes done in the process of surgery, because the patient does not have pain, some doctors in the suction operation may be more times, the endometrium will cause damage, but if the experienced doctor, will not cause additional damage. In case of medication abortion, the incidence of incomplete abortion is higher, and some people need to clear the uterus again. During the clearing of the uterus, due to the inflammatory reaction and edema of the endometrium, if the uterus is scraped at this time, the damage to the endometrium is also very serious, so the best method is to do ordinary abortion.