Immunohistochemistry is not necessary for intestinal polyps. Intestinal polyps, elevated lesions protruding from the surface of the intestinal mucosa into the intestinal lumen, are a class of abnormal growths of tissue, both neoplastic and non-neoplastic, collectively referred to as polyps until the nature of the pathology is determined. When rectal fingerprinting, endoscopy or surgery found in the intestinal tract the presence of new organisms, but the pathology is not clear, can be diagnosed as intestinal polyps. After the doctor finds out the existence of intestinal polyps in the patient, collectively, he needs to take some polyp tissues for pathological biopsy under endoscopy, and analyze them through microscopic or chemical methods to come up with the specific type and nature of polyps. Therefore, when the ordinary pathological examination can determine the pathological type of polyps, generally do not need to carry out immunohistochemistry, on the contrary, need to carry out immunohistochemistry for analysis and diagnosis. Patients with intestinal polyps are advised to consult a doctor for a clear diagnosis and targeted treatment under the doctor’s guidance.