Early stage colon cancer usually does not have metastasis, and most of the metastases are in middle or late stage. Early stage colon cancer lesions are more limited, often only in mucosa or submucosa, metastasis will not occur, and the prognosis is better, radical surgery can be taken early, radiotherapy after resection, and the cure rate is higher. If metastasis occurs, mostly when colon cancer is in middle or late stage, there are tumors that are not only limited to the mucosa or submucosa, and the phenomenon of proximal metastasis or distant metastasis may occur; proximal metastasis is often in the intestines, while if distant metastasis occurs, most of them are bloodway metastasis, such as liver metastasis. Once colon cancer is diagnosed, one should cooperate with doctors to take treatment in time, and go to hospital regularly for rechecking to observe the treatment.