If you have no symptoms of abdominal pain 20 days after the removal of uterus, you should consider the complications related to the removal of uterus, such as residual uterine cavity, endometritis, etc. Of course, you can also rule out the problems that have nothing to do with the removal of uterus. Of course, we can’t rule out problems that are not related to the removal operation, so we can go to the hospital in time for examination to clarify the cause of the problem and then treat it.1. Pain before menstruation: If you have dysmenorrhea in the past and are about to have menstruation 20 days after the removal operation, you may experience dysmenorrhea, which can be primary dysmenorrhea or dysmenorrhea caused by adenomyosis. If the dysmenorrhea is mild, it can be relieved by applying hot compresses on the abdomen and drinking hot soup. If the pain is severe, it is recommended to consult a doctor in a timely manner, and take ibuprofen, ketoprofen and other medications as prescribed by the doctor for relief; 2, uterine residual: after abortion, there is residual blood or tissue in the uterine cavity, irregular vaginal bleeding, accompanied by paroxysms of abdominal pain symptoms. Should go to the hospital to do ultrasound examination to confirm the diagnosis, can follow the doctor’s instructions to use motherwort and other pro-contraction drug treatment, if necessary, again clear the uterus; 3, endometritis: there can be persistent abdominal pain, lumbago, lower abdominal distension with high fever and other symptoms, feasible blood and cervical secretion and drug sensitivity test examination, after diagnosis, can be applied to the application of cefuroxime and metronidazole anti-inflammatory treatment as directed by the doctor; 4, the other: in addition to gynecological pathology, from the abdominal pain symptom alone! In addition to gynecological lesions, abdominal pain symptoms alone, may also be associated with gastrointestinal lesions, or urinary stones and other conditions, the specific cause of the need to consult a doctor.