The abortion is better compared to the medical abortion. This is because after abortion, the possibility of intrauterine residues is very small and the uterus contracts very well. The uterine opening closes as soon as possible in a short period of time, preventing pathogenic bacteria from invading the uterine cavity and causing infection in the uterine cavity, resulting in pelvic inflammatory disease and endometrial inflammation. With a medication abortion, the vast majority of the gestational sac will be expelled after misoprostol is administered. However, the detached tissue will remain within the uterine cavity, causing prolonged vaginal bleeding. When the vaginal bleeding occurs, the opening of the uterus is open and the chance of pathogenic infection increases. In addition, if the medical abortion is incomplete, the uterus will need to be cleared again, which will cause secondary damage.