Pathologic results of colonoscopy polyp biopsy are more accurate. Biopsy pathology results are more accurate, because biopsy is through the lesion area tissue through staining and other means of examination. Usually when biopsy pathology, in order to improve the accuracy, will take more than one piece of tissue of the lesion site for examination, which can greatly improve the accuracy; and biopsy is the lesion site can be cytomorphology and other forms of detection, through a variety of ways of detection to better clarify the nature of the lesion, which can help diagnosis. Intestinal polyp biopsy pathology is under the enteroscope, take a part of the polyp site of the tissue for pathological examination, observation under the microscope, so the results are more accurate, is used to diagnose the gold standard.