Malignant tumors of the intestine may either live only a few months or may be completely cured and live for decades until natural death. Because the same intestinal malignant tumor, but in different parts of the intestine, different pathological types of malignant tumors, and different degrees of development, can make a huge difference in the survival period of patients. For example, the most common type of colon cancer, stage IV, which is colon cancer with systemic metastasis, has a survival rate of about 5-6% to 5 years. If the carcinoma in situ is in the superficial layer of mucosa, it can be completely cured after microscopic resection. From different pathological types, if it is a carcinoid tumor of the appendix in the ileocecal region, the risk of recurrence after resection is found to be very low, and it is entirely possible to be cured and live until natural death. However, if it is a malignant tumor near the duodenum, poorly differentiated adenocarcinoma has a shorter survival period, maybe 1-2 years, so we must analyze the specific problem.