It is not normal to have vaginal bleeding after 15 days of abortion. Normal vaginal bleeding will gradually decrease and disappear in about 1 week. If there is still vaginal bleeding in 15 days, it may be caused by poor contraction of the uterus, which may lead to bleeding. If vaginal bleeding still occurs after 1 week of medication and there is no significant improvement, there may be residual tissue in the uterine cavity, so you need to go to the hospital for pelvic ultrasound examination to help diagnose the situation.