Usually, there will be bleeding for 3-7 days, up to 10 days, after the abortion procedure. As abortion surgery will cause local tissue damage such as endometrium and myometrium, and thus irregular vaginal bleeding, but the bleeding will gradually disappear as the body recovers. If this time is exceeded, it is suspected that the patient has a bacterial infection, residual embryonic tissue, or poor uterine recuperation. At this time, the patient should go to the hospital for ultrasound examination to clarify the cause of the disease.1, germs infection: after abortion due to poor hygiene habits, decreased resistance, mechanical trauma and other reasons, germs are easy to invade the human body, so that the reproductive system inflammation and infection, induced vaginitis, cervicitis, pelvic inflammatory disease and other diseases, so that the patient appeared abdominal pain, bleeding and other uncomfortable symptoms. It is necessary to take antibiotics for treatment under the guidance of a professional doctor; 2, residual embryonic tissue: if the patient’s uterus is poorly positioned, there is anterior or posterior tilt, it is easy to clear the uterus incompletely, so that the embryonic tissue residual, which affects the uterus contraction, recovery, resulting in bleeding, abdominal pain and other conditions after the abortion. At this time, the patient should do ultrasound to check the uterine cavity, if there is a residual uterine cavity, you can follow the doctor’s instructions to take the new biochemical particles, accelerate uterine contraction, prompting the discharge of residual tissue; 3, poor uterine regeneration: post-partum exposure to cold, too much fatigue and other conditions can make the uterus endometrium repair, affecting the uterine regeneration, which leads to abdominal pain, bleeding and other symptoms. Patients can take medication to stop bleeding under the guidance of the doctor to alleviate the symptoms.