The doctor instructs the patient to adopt a certain position, either knee-chest, truncal or lateral position for examination, as follows: 1, anal visual examination, using both hands to gently lift the anus to both sides, for those who have rectal prolapse, it is best to observe immediately after defecation in the squatting position, which can clearly see the true situation of the size, number and location of hemorrhoids; 2, rectaloscopy, which is of little significance for internal hemorrhoids. The main purpose of finger diagnosis is to understand whether there are other lesions in the rectum, especially to exclude the occurrence of intestinal tumors; 3, anoscopy, which can understand the situation in the rectum and anal canal under direct vision, first observe whether the rectal mucosa is congested, edema, ulcers, lumps, etc., and then observe whether there is hemorrhoidal tissue above the dentate line after excluding other rectal disorders, and if so, it can be seen Internal hemorrhoids protrude into the anoscope as dark red nodules, at this time, attention should be paid to their number, size and location.