If the patient has the urge to defecate and the pain disappears after relieving the stool, it is most likely caused by the accumulation of feces in the intestine. In addition, inflammation of the rectum or sigmoid colon and polyps inside can also cause this condition, which requires an e-colonoscopy to clarify. If it is inflammation of the colon or rectum, it can be regulated with drugs such as rectoxan plus mesalazine. If the polyp is growing in this area, electrocoagulation and electrosurgery of the polyp under e-colonoscopy is needed to deal with it. After ruling out intestinal factors, the possibility of varicose veins in the left ureter and spermatic cord should be considered, and abdominal ultrasound should be done to clarify.