Any polyp-like lesion protruding from the surface of the colonic mucosa into the intestinal lumen is called a colonic polyp until the nature of the pathology is determined. Its incidence increases with age and is more common in men. There are two main types of polyps: inflammatory and adenomatous. Inflammatory polyps can disappear on their own after the inflammation is cured; adenomatous polyps usually do not disappear on their own and have a tendency to become malignant. The most effective measure to detect polyps and determine the nature of their lesions is regular full colonoscopy (including pathology) and interventional treatment under colonoscopy. Etiology: The occurrence of colonic polyps may be related to the following factors, as described below: 1. infection Some reports suggest that the occurrence of adenomatous polyps is related to viral infection; 2. age The incidence of colonic polyps increases with age; 3. embryonic abnormalities Juvenile polyps are mostly misshapen tumors, which may be related to abnormal embryonic development; 4. lifestyle habits The occurrence of polyps is less if the food contains more fiber, and more if the other way around. Smoking is also closely related to adenomatous polyps, with small adenomas occurring in those who have smoked for less than 20 years and large adenomas in those who have smoked for more than 20 years; 5, genetics The occurrence of some polyposis is related to genetics, patients inherit a defective oncogene APC allele from their parents’ germ cells, while the other APC allele in the colonic epithelium is normal at birth. Later, when this allele is mutated, adenoma occurs at the site of the mutation, and this mutation is called somatic mutation.