The growth rate of colon cancer is determined by the multiplication time of tumor cells, and of course the growth rate of tumor growth in the body is also imaged by several factors such as blood supply. Generally speaking, the growth is about half circle of intestinal wall per year, and two years is about one circle of intestinal circumference. If the patient finds that the tumor occupies half of the intestinal circumference during the colonoscopy, it means that the colon cancer may have one year, and if the tumor occupies the whole circle of the intestinal circumference, it means that it may be about 1.5-2 years. It also depends on the degree of malignancy of the tumor, the speed of growth and the patient’s physical condition together, there is no clear time limit. For example, if a tumor develops in the right hemicolectomy, there is a possibility of anemia, that is, malnutrition, which will not lead to intestinal obstruction. If the tumor occurs in the left hemicolectomy, it may cause the patient to develop symptoms of intestinal obstruction.