It is normal to have no bleeding after a painless abortion. If the uterus is completely suctioned during the painless abortion, there is no residue in the uterine cavity and the uterus contracts well, there will be no bleeding after the abortion. If the patient has vaginitis or cervicitis, untreated or incompletely treated before the operation, not strictly sterilized during the operation, premature coitus after the operation, etc., infectious bleeding may occur after the operation, which is generally more common. Bleeding is dark red or light red with foul odor, and in severe cases, lower abdominal pain, anal swelling, and so on. If the patient’s uterus recovers poorly after the operation, it can also lead to drenching vaginal bleeding. After the occurrence of the above situations, it is recommended to go to the gynecology department of the hospital in time for appropriate treatment. In addition, patients should be prohibited from coitus, swimming and tub bath for one month after the operation, pay attention to rest, avoid exertion, eat a light and nutritious diet, review the ultrasound two weeks after the operation, and follow the doctor’s instructions to take medication, avoid using drugs on their own.