The common metastatic sites of colon cancer should be described according to different metastatic pathways, as follows: First, local spread, that is, colon cancer metastasizes locally from the colon to the surrounding organs, common metastatic organs include bladder, prostate, uterus, small intestine, etc. Secondly, lymphatic metastasis, which is mainly metastasis to lymph nodes around the colon, such as mesenteric lymph nodes, paracolonic lymph nodes, and distant to supraclavicular lymph nodes. Thirdly, hematologic metastasis, that is, cancer cells enter the bloodstream and metastasize with blood circulation, the common blood circulation metastasis is liver, lung, bone, brain, ovary, etc. Fourthly, implantation metastasis, colon cancer cells are shed from the surface of colon and planted in the abdominal cavity and pelvic peritoneum to form nodes, common metastasis is metastasis of peritoneum and abdominal cavity.