The survival period of colon cancer after radical surgery is determined by the stage of the tumor, and the overall 5-year survival rate is about 60%-70%. If the patient has stage I colon cancer, i.e. early stage colon cancer, the patient can generally live for a long time after radical surgery, and the 5-year survival rate is over 90%. If the patient has stage II colon cancer, i.e. no lymph node metastasis around the tumor, the survival period after surgery is also very long, and many patients can live for 5 years or even more than 5 years. The specific need for chemotherapy is determined by the size of the tumor and the malignancy degree of the tumor. In case of stage III colon cancer, i.e. lymph node metastasis has appeared around the tumor, but if radical surgery can be performed, it means the effect of surgical treatment is very good. After surgery, chemotherapy is required and regular medical checkups are needed, and the overall survival period is longer. If the signs of recurrence or metastasis are detected early during medical checkups, early intervention can prolong the survival of patients.