Left lower abdominal pain in colon cancer is mainly characterized by abdominal cramps. Meanwhile, it will be accompanied by the uncomfortable symptoms such as lethargy, blood in stool, change of stool character and so on. It is recommended to consult the doctor in time and decide the treatment plan after completing relevant examinations. Colon cancer mainly refers to malignant tumors from the mucosal epithelium of colon. In the early stage, there is no obvious symptom, and as the disease progresses, the symptom of severe colic pain in the left lower abdomen will appear. Due to the growth and reproduction of cancerous cells, the nutritional consumption of the body will be affected, and therefore, symptoms such as weight loss, blood in stool, change of stool properties and other discomforts will occur. It is recommended to consult the doctor promptly after the above symptoms appear, and complete colonoscopy, fecal occult blood test, tumor marker and other tests under the doctor’s guidance, so as to formulate appropriate treatment plan after clear diagnosis. Early stage of colon cancer can be treated by radical surgery, which can widely remove tumor cells and clear local lymph nodes to achieve better prognosis. The common surgical method is abdominal perineal rectal resection with permanent colostomy, after which patients need to undergo regular checkups and take good care of themselves.