If vaginal bleeding occurs again half a month after the abortion, and if the uterus has been examined 10 days after the abortion, and the uterus is contracting well and there is no residual tissue in the uterine cavity, such bleeding may be clinically caused by bleeding during ovulation. Because most of them will resume ovulation about 15-20 days after the miscarriage, there is no pain in the lower abdomen when bleeding occurs, there are no other symptoms, and the amount of blood is relatively small, and most of them will be cleared up by themselves in about 3 days without clinical intervention. However, if there is pain in the lower abdomen and the blood has a strong odor, it is likely to be caused by an infection, so it is recommended to go to the hospital for examination and necessary treatment.