Clinical data show that the survival rate of colon cancer stage II is more than 50%. At present, the main indicator of the survival rate of cancer patients is 5-year survival rate, and the data show that the 5-year survival rate of colon cancer can be more than 50%, and the chance of surviving for 10 years in the second stage of colon cancer is basically the same as the 5-year survival rate of colon cancer. At present, the main indicator of cancer patients’ survival rate is the 5-year survival rate, which refers to the percentage of a certain kind of tumor surviving for more than 5 years after various kinds of comprehensive treatments. Clinically, for tumors that can be removed by radical surgery, if there is no recurrence or metastasis 5 years after radical surgery, the chance and risk of recurrence is very low, and it can be regarded as clinically cured. Colon cancer can be clinically divided into four stages, A, B, C and D. Among them, stage B, i.e. stage II, is mainly manifested as the tumor invades the plasma layer of extra-plasma membrane tissues but no lymph node metastasis occurs, and at this time, it can be resected by radical surgery. Current medical clinical data show that the 5-year survival rate of colon cancer is more than 50%, so the chance of surviving 10 years for stage II colon cancer is basically the same as that of 5-year survival rate of colon cancer, which is more than 50%. If patients with colon cancer can be detected, diagnosed and treated early, and treated by radical surgery, the prognosis is good, so there is no need to worry too much and they should cooperate with doctors for active treatment.