The feeling of anal swelling with the urge to have bowel movement is considered to be caused by bacillary dysentery, proctitis, uterine fibroids and other diseases. 1. Bacterial dysentery: it is an intestinal infectious disease caused by dysentery bacillus infection, the incubation period of this disease is usually 1~4 days, after the onset of the disease, the patient usually appears abdominal pain, diarrhea, fatigue and other symptoms, and there will be a clear phenomenon of acute and severe after the onset of dysentery, resulting in the patient’s self-consciousness of a feeling of swelling in the anus, and there is a desire to stool. 2. Proctitis: acute and chronic inflammation of the inner wall of the rectum caused by inflammatory bowel disease, pathogenic microbial infection, anal and intestinal diseases, etc. Patients can irritate the wall of the rectum due to inflammation, and they often have a feeling of anal swelling, frequent bowel movements, frequent defecation, etc., and there is a feeling of incomplete defecation after defecation, and in addition, the patients can also have pain in the left side of the abdomen. 3. Uterine fibroid: it is a common gynecological disease, which is a benign tumor formed by the proliferation of uterine smooth muscle tissue. Clinical manifestations include abnormal menstruation, such as increased menstrual flow, prolonged duration of menstruation, abnormal vaginal secretion (e.g. leukorrhea, etc.), etc. If fibroid is large, it will also oppress the rectum, which will lead to the feeling of anal distension and dyspareunia in the patient. There are many other causes of anal distension and dyspareunia, so it is recommended that patients go to the hospital in time for differential diagnosis, and receive treatment as soon as possible after the cause of the disease is clarified, so as to avoid delaying the condition.