According to the general pathology, there are types of bowel cancer such as bulging type, ulcerative type and infiltrative type.
1. Bulging type, that is, the tumor tissue in the lesion area protrudes into the intestinal lumen, appearing in the shape of nodule, polyp or cauliflower, so it is called bulging bowel cancer.
2. Ulcerative type, there are obvious ulcers on the surface of the tumor tissue, some of them are one, some of them are multiple ulcers, so it is called ulcerative bowel cancer.
3. Infiltrative type, the tumor tissue continuously infiltrates and grows diffusely to all levels of tissues inside the intestinal wall, resulting in local thickening of the intestinal wall, but there is no bulge and ulcers on the surface, which belongs to infiltrative type of intestinal cancer.