Induced abortion is a method of artificial termination of pregnancy due to unintended pregnancy, disease, etc. It is a remedial measure for contraceptive failure and is mostly performed in the early stages of pregnancy. Abortion is harmful to the reproductive health of pregnant women, and the real purpose of family planning is to avoid or reduce unwanted pregnancies through good contraceptive measures. Common hazards are as follows: 1, anemia: after abortion, there will be varying degrees of vaginal bleeding, vaginal bleeding for a long time can last 2-3 weeks, or even 1-2 months, long-term chronic blood loss can cause anemia. 2. Infection: Due to long-term chronic blood loss, it can cause the body resistance to decline. Bacteria can be retrograde from the vagina to cause endometrial inflammation. Multiple pregnancies with multiple abortions, multiple intrauterine operations or improper maintenance increase the risk of infection, such as acute endometritis and pelvic inflammatory disease. 3, menstrual disorders: the main component of anti-pregnancy drugs is anti-progestin, which can inhibit the function of the ovaries and affect the growth and development of follicles and even interfere with ovulation. After drug abortion, menstrual disorders can occur in some pregnant women, manifested as shortened or prolonged menstrual cycle and increased menstrual volume. 4, uterine perforation: is a serious complication of abortion, prone to occur in the lactating pregnant uterus, scarred uterus after cesarean delivery again pregnancy. 5, amniotic fluid embolism: due to the pregnancy and uterine wall stripping the blood sinus open to create conditions for amniotic fluid into the body, generally rarely occur. 6, affect future pregnancies: women of childbearing age such as repeated pregnancies and repeated abortions can cause repeated damage to the endometrium and uterine cavity adhesions, which can lead to infertility when a normal pregnancy is needed, and after pregnancy, placenta praevia can easily occur, which can cause prenatal hemorrhage and even habitual abortion, and at the same time, increase the risk of preterm labor and ectopic pregnancy. In conclusion, abortion is a remedy for contraceptive failure and can cause certain harm to women, and effective contraceptive measures are recommended for women without pregnancy plans.