Abortion twelve days to review no residual but stomach pain and bleeding may be caused by poor uterine recuperation, infection and other reasons. 1. poor uterine regeneration: abortion is a surgical method to terminate early pregnancy within 10 weeks, which needs to be operated by a professional doctor. Generally, vaginal bleeding will last for about 1 week after the operation, when there is still abdominal pain and vaginal bleeding after the ultrasound examination 12 days after the operation to exclude the residue in the uterine cavity, it may be caused by poor uterine regeneration, which can be given by the doctor’s advice to promote uterine contraction of the uterus, epsilon, and other medicines. 2. Infection: when there is a combination of postoperative infection, the inflammation will affect the uterine contraction, and abdominal pain and prolonged vaginal bleeding will also occur. It may also be accompanied by odor, uterine pressure and pain, etc. It can be diagnosed by combining with clinical manifestations and ultrasonography and blood tests. Antibiotic treatment is required as prescribed by the doctor. When the abortion is repeated for twelve days with no residuals but with stomach pain and bleeding, it is necessary to go to the hospital in time to find out the cause and actively treat it.