Colon cancer can be categorized into ulcerative type, bulging type and infiltrating type according to its general morphology, among which bulging type is the type with better prognosis. 1. Bulging type: it means that the whole tumor protrudes into the intestinal lumen, the surface may be accompanied by ulcers, and rarely infiltrates into the surrounding area, which is mostly highly differentiated adenocarcinoma, with relatively low malignancy degree and better prognosis. 2. Infiltrative type: the tumor infiltrates into the intestinal wall, resulting in thickening of the intestinal wall and narrowing of the intestinal lumen; the tumor cells have a low degree of differentiation, and the metastasis is early and the prognosis is poor. 3. Ulcerative type: ulcerative colon cancer has the shape of round shape, the middle is sunken and the edge is raised, the tumor cells grow towards the muscle layer of intestinal wall, and also infiltrate into the surrounding. The tumor cells grow towards the muscle layer of the intestinal wall and also infiltrate into the surrounding area. Early ulcerated type is easy to bleed, and this type is less differentiated and metastasizes earlier, with poorer prognosis. If patients are diagnosed with colon cancer, they should go to the hospital in time and receive standardized treatment under the guidance of doctors.