The advantage of scraping is to reduce uterine bleeding or infection and to clarify the nature of the lining; the disadvantage is that if the scraping is incomplete, the uterus will continue to bleed or become infected, and it may also result in adhesion of the cervix or the lining, and bacterial infections in the uterus. 1. Advantage: If a woman’s abortion is incomplete during a medical abortion, she will need to undergo a curettage treatment. Curettage can remove some residual tissues from the uterus, which is conducive to uterine recovery, and can also reduce the possibility of uterine bleeding or infection when the procedure is performed completely. For patients with thickened endometrium and abnormal bleeding, scraping can be performed and the scraped out tissues can be sent for pathological examination to clarify the nature of the endometrium. 2. Disadvantages: If the curettage procedure is not performed completely, some fetal tissue will remain in the uterus, affecting uterine contractions and causing persistent bleeding or infection in the uterus. When scraping the uterus, the cervix or the lining of the uterus may be injured or inflamed, resulting in adhesions, abnormal menstrual symptoms, and in severe cases, infertility; when scraping the uterus, the instruments are not completely sterilized or the aseptic operation is not strictly performed, it may lead to infection in the uterus, and so on. It is recommended to consult a doctor for professional assessment and treatment.