The abortion is suitable for early intrauterine pregnancies within 49 days of menopause and the diameter of the gestational sac is less than 2.5 cm, but not for ectopic pregnancies. 35-40 days of pregnancy is the most sensitive to the action of drugs. 2 months of gestational sac is too large, if the abortion is carried out, it will easily lead to incomplete abortion, and later it will still be necessary to perform the operation to clear the uterus. The abortion is performed by inhibiting the development of the embryo and then discharging the embryo by means of contractions. Usually, 2-3 days after taking the embryo inhibiting drug, the contractions will start after 2 hours, causing abdominal pain, and the embryo will be kept in the hospital for 6 hours after discharge for observation. Painless abortion is an abortion operation performed under anesthesia, using negative pressure to suck out the embryonic tissue and the pregnancy sac, during which the pregnant woman will not experience any pain, but will still cause damage to the uterine cavity. In addition, regardless of drug abortion or abortion, the damage to the body is greater, easy to cause reproductive system infection, chronic pelvic inflammatory disease, abnormal menstruation, uterine cavity infection or adhesion, habitual abortion, etc., affecting fertility, no reproductive plans, sexual life needs to pay attention to contraception, should also strengthen the sex education of adolescents, so as not to cause unnecessary physical and psychological harm.