There are two main types of colon cancer surgery: radical colon cancer surgery and surgery for colon cancer complicating acute obstruction. 1. Radical colon cancer surgery: the surgery requires removing the tumor, as well as the intestinal tubes more than 10cm proximal and distal to the tumor, including the mesentery and related lymph nodes. Common surgical methods include right hemicolectomy, transverse colectomy, left hemicolectomy and sigmoid colectomy. (1) Right hemicolectomy: It is suitable for cancer of cecum, ascending colon, and hepatic flexure of colon. (2) Left hemicolectomy: for cancers of the splenic flexure and descending colon. (3) Transverse colectomy: for tumors in the middle of the transverse colon. (4) Sigmoidectomy: applicable to cancer of first colon, the resection scope includes sigmoid colon and its peripheral mesentery and lymph nodes. (2) Surgery for acute obstruction complicated by colon cancer: patients with right colon cancer can undergo right hemicolectomy and one-stage ileocecal anastomosis; patients with left hemicolectomy complicated by obstruction can undergo stenting, and after that, radical surgery can be performed in a limited period of time; if intestinal tube is dilated and edema is obvious, proximal stoma and distal closure can be performed, and after that, stoma can be re-instrumented. For patients diagnosed with colon cancer, they should go to relevant departments of regular hospitals as soon as possible for consultation and treatment, and try their best to “early detection, early diagnosis and early treatment”. To avoid the deterioration of the condition due to the delay.