Hysteroscopic abortion surgery is often applied to the following situations: 1. Having a history of cesarean section and scarring on the uterus, the gestational sac is found to be relatively close to the scar under ultrasound, and it is considered to be possible to perform a hysteroscopic abortion surgery to minimize the possibility of rupturing the scar. 2. At the time of pregnancy, the gestational sac is close to the uterine horn, and in order to avoid an incomplete abortion, it is then performed to make the The products of pregnancy are completely removed to achieve the purpose of complete abortion. Before doing hysteroscopy, it is also recommended to do the corresponding laboratory tests and gynecological examinations, such as doing routine leukorrhea, blood, coagulation time electrocardiogram and chest X-ray before doing hysteroscopic abortion.