Uterine pus accumulation is caused by adhesions of the cervical canal and inability to drain pus from the uterine cavity. The cause of cervical canal adhesions is mostly seen in endometrial damage caused by curettage or abortion, or in postmenopausal women who develop cervical canal adhesions due to endometrial inflammation or inflammation of the uterine cavity. In the treatment, the opening of the uterus is first dilated with a cervical dilator rod, and then the pus will flow out into the body. A thin catheter can also be placed in the uterine cavity for drainage, and the cavity can be flushed with metronidazole solution. The pressure must be controlled during the flushing process, not too much, to avoid flushing the pus into the peritoneal cavity and causing peritoneal inflammation. The treatment must be accompanied by broad-spectrum antibiotics, and when the results of drug sensitivity are available, the treatment will be based on the results of drug sensitivity, and the treatment of this disease will take at least two weeks.