Intestinal polyps are generally not cancerous. If pathological examination suggests proliferative polyps and inflammatory polyps, they are relatively safe and have a low malignant rate; adenomatous polyps and villous polyps are more malignant and prone to carcinogenesis. Intestinal polyps are abnormal growing tissues protruding from the surface of the intestinal mucosa, which are collectively called polyps before the pathological nature is determined, and their incidence increases with age and are more common in men. Whether intestinal polyps can become cancerous or not is related to the number, size and nature of polyps. Inflammatory polyps can disappear on their own after the inflammation is cured; adenomatous polyps usually do not disappear on their own and have a higher possibility of carcinogenesis. When adenomatous polyps, villous polyps or polyps are found to be large, surgical removal is an option to prevent their carcinogenesis. The prognosis of intestinal polyps after surgery is good, but the recurrence rate is high and needs to be reviewed regularly. Patients should pay attention to their diet in daily life and avoid eating too hot, too spicy, too cold and spoiled food.