Abortion can be performed in cases of pregnancy of more than 2 months. Abortion is a remedy for contraceptive failure, to determine if the pregnancy is really more than 2 months old, the number of days of pregnancy is counted from the first day of the last menstrual period to the present date. Induced abortion is an option for patients who need to terminate their pregnancy within 14 weeks of pregnancy. Intrauterine pregnancy within 49 days of pregnancy can be aborted medically, but if the pregnancy is more than 49 days to within 14 weeks of pregnancy can be aborted. Between 12 and 14 weeks of pregnancy, if the child has grown larger, a large month clamp procedure is required. Depending on the length of pregnancy, abortion can be divided into negative pressure aspiration and abortion and large month clamp procedure, which are all within abortion.