A small amount of vaginal bleeding after abortion is a normal phenomenon, because abortion will bring damage to the endometrial tissue, abortion is only suction out the gestational sac tissue and most of the meconium tissue, after which there will be a small amount of vaginal bleeding, which will not be more than the amount of menstruation, and will not last more than 1 week, it is the discharge of the blood in the uterine cavity as well as a small portion of residual meconium tissue. If the vaginal bleeding after abortion is more than ten days, the amount of bleeding increases or after the bleeding stops, there is a large amount of vaginal bleeding, it should be considered that there is the possibility of intrauterine residual, need to do ultrasound examination to help diagnosis, if the residual tissue is relatively large, there is no obvious truth of the infection, it should be carried out after scraping the uterus to scrape the uterus, scraping the uterus sent to the routine pathology examination, and give antibiotics to prevent infection after the operation.