Tubular adenomatous low-grade epitheliomatous neoplasia of the ascending colon, transverse colon, and descending colon are precancerous lesions, which are more serious, and are recommended to be treated with surgery and regular follow-up colonoscopy. Intestinal polyps can be divided into adenomatous polyps and non-adenomatous polyps according to the pathology. Adenomatous polyps mainly include tubular adenoma, choriocapillaris adenoma, tubular choriocapillaris adenoma, and non-adenomatous polyps mainly include hyperplastic polyp, inflammatory polyp, and misshapen polyp. Tubular adenomas low grade epithelial tumors also known as atypical hyperplasia are precancerous and are more serious. Of all bowel cancers, the majority of bowel cancers develop from the slow evolution of adenomatous polyps, and the process from polyp to bowel cancer is usually a 5-15 year process, usually thought to be around 10 years. Therefore, colonic tubular adenomas with low-grade epithelial neoplasia are precancerous lesions, and it is recommended that patients undergo timely endoscopic surgical treatment and regular follow-up colonoscopy. Low-grade epitheliomatous neoplasia of tubular adenomas of the ascending, transverse, and descending colon, patients are advised to go to regular hospitals and be treated as early as possible to avoid delay.