The anatomical basis of hemorrhoids is the anal cushion, which is the normal tissue structure of the anal canal, and the displacement of the anal cushion results in hemorrhoids; in other words, hemorrhoids are the clinical manifestation or consequence of the displacement of the anal cushion. The anal cushion is necessary for anal closure. Patients with hemorrhoids usually have high sphincter tone and an elevated sensory threshold for rectal distension, along with a normal recto-anal inhibitory reflex. Tests have demonstrated that these factors play a dominant role in maintaining anal self-control, rather than anal pad sensation. Although anal pad sensation plays a role in anal self-control, it is not the primary role, and do not be afraid to have hemorrhoidectomy.