Tubular adenoma is a polypoid condition that occurs in the colon, but tubular adenomas and polyps are different diseases. Tubular adenomas, or adenomatous polyps, are more common in clinical practice. Adenomas are spherical, ellipsoidal or irregular, with a smooth or lobulated surface, pink in color, solid in texture, and often have tips of varying lengths and thicknesses attached to the intestinal mucosa. When the size of the tumor is only a few millimeters, it can be broad-based and without a visible tip. The larger the tubular adenoma, the greater the chance of malignant transformation. When the adenoma>2cm, the cancer rate is significantly higher. Polyp is a superfluous growth on the surface of human tissue, including hyperplasia, inflammation, misshapen tumor, adenoma and so on. Polyps belong to a kind of benign tumors, clinical manifestations of inflammatory polyps, adenomatous polyps and some gastrointestinal polyp syndrome, although all belong to the benign lesions, but does not exclude the tendency of malignant transformation. Therefore, it can only be said that tubular adenoma is a polyposis that occurs in the colon, but not polyps, and there is a difference between the two.