The life expectancy of bowel cancer patients is analyzed on a case-by-case basis. Bowel cancer includes colon cancer and rectal cancer, which are generally referred to as colorectal malignant tumors. The life expectancy of bowel cancer patients is not only related to the early or late detection of bowel cancer (whether bowel cancer is detected early or late is related to the treatment plan, operation method and prognosis of bowel cancer), but also related to the patient’s mentality and belief in overcoming the disease, life style, dietary habits and other factors. Generally speaking, the five-year survival rate of Stage I bowel cancer can reach more than 90% after standardized and correct treatment, the five-year survival rate of Stage II bowel cancer can reach 60-70%, the five-year survival rate of Stage III bowel cancer can reach 40%, and the five-year survival rate of Stage IV bowel cancer can be around 10-15%. After diagnosed with bowel cancer, you must go to regular hospitals to formulate personalized and optimal treatment plan under the guidance of specialists.