For uterine scar pregnancy, it depends on the situation to decide whether painless abortion can be performed or not. Painless abortion is more suitable for women with gestational sacs in the uterine cavity at 35-50 days of gestation. If the gestational sac is in the uterine scar, the uterine muscle wall is thin, the gestational sac is large or the blood HCG is high, painless abortion is generally not recommended because painless abortion is performed under non-visible conditions and the gestational sac is reached and sucked out with the help of a suction tube, which is more risky and prone to hemorrhage, infection and even uterine rupture. The procedure is more risky, prone to haemorrhage, infection, and even rupture of the uterus. Uterine scar pregnancies are more common in women who have had a history of cesarean delivery, because during the cesarean operation, the doctor makes an incision in the pregnant woman’s uterus to remove the baby, leaving a uterine scar after the suturing. When a woman becomes pregnant again, if the gestational sac is located in the uterine scar, it must be treated as soon as possible, usually by terminating the pregnancy, depending on the specific case, for example, by combined hysteroscopic surgery. In the case of early pregnancy, local or systemic medication combined with uterine artery embolization may be used to lower the HCG index, followed by hysteroscopic excision or scraping to expel the sac and complete the clearance procedure. It is also important to note that patients with scarred uterus pregnancies are at risk of re-pregnancy, especially if a scarred pregnancy reoccurs. Therefore, for women who do not want to have children, long-term and effective contraceptive methods such as oral contraceptive pills, intrauterine devices, subcutaneous implants, vaginal contraceptive rings, tubal ligation, etc. can be used as prescribed by the doctor. For women with fertility requirements, it is recommended that pregnancy be delayed after six months of treatment.