Adenomyosis generally refers to adenomyosis of the uterus, adenomyosis of the uterus painless abortion on the fifth day of heavy bleeding may be caused by incomplete abortion, intrauterine infection, poor uterine contraction and other factors, which can be treated by medication, surgical treatment and other ways of treatment. 1. Incomplete abortion: If there are residual tissues retained in the uterine cavity during the operation, it will lead to heavy bleeding on the fifth day after the operation, and at this time, it is necessary to carry out surgical treatment to remove the residual tissues out of the body. 2. Intrauterine infection: If you don’t pay attention to hygiene and have sex too soon after the operation, it may lead to intrauterine infection and hemorrhage. Patients should take cephalosporins, penicillins and other drugs under the guidance of the doctor to control the infection. 3. Poor uterine contraction: adenomyosis patients with poor uterine contraction, painless abortion after the traumatic blood sinus is in an open state, the phenomenon of hemorrhage will occur. At this time, you need to follow the doctor’s instructions oral motherwort granules or intramuscular injection of drugs such as oxytocin to strengthen uterine contraction, improve the phenomenon of hemorrhage. Adenomyosis painless abortion bleeding on the fifth day of more causes, we recommend that the patient admitted to the hospital for examination, and standardized treatment.