It is normal to have vaginal bleeding on the fourth day of abortion. During the abortion procedure, the uterine meconium is peeled off from the uterine wall and the small spiral arteries and veins in the uterine meconium and endometrium are opened, resulting in bleeding. It takes about 5-7 days for the bleeding to stop, and in rare cases it may take 2-3 days for the bleeding to stop, but generally it should not exceed 14 days. If the vaginal bleeding exceeds 14 days after the abortion, it is possible that the uterus is not contracting well, there is blood in the uterine cavity or there is a residual placenta or fetal membranes. It is recommended that if the bleeding does not clear after 14 days after the abortion, you must go to the hospital for an ultrasound examination to see if the abortion is incomplete. Bleeding on the fourth day after abortion is a normal situation. Just pay attention to rest, pay attention to diet, avoid cold, spicy and stimulating food, and pay attention to strengthening nutrition.