An intestinal polyp that grows to one centimeter in two years can only mean that the polyp has grown, and it is not possible to tell if it is serious. Intestinal polyps are bulging lesions that protrude from the surface of the intestinal lumen. Generally speaking, whether intestinal polyps are serious or not should be judged according to the number of how many, the volume size, location and morphology and the nature of the pathology and many other factors. If after the colonoscopy, found that the intestinal polyps are multiple, or the volume is large, the growth rate is very fast. This is a more serious situation and should be treated with surgical removal of polyps to prevent cancer. If after colonoscopy, the polyps are small, single, without any discomfort symptoms. This situation is less serious and can be observed conservatively for a period of time. It is recommended that patients find that intestinal polyps grow rapidly over a period of time, consult a doctor for review as soon as possible, and take surgical treatment under the guidance of a doctor to prevent polyps from becoming cancerous and causing adverse consequences.