The anal papilla is a triangular, yellowish-white, papillary protrusion below the anal flap. It has a cone-shaped or triangular shape and is a remnant of the embryo, with 3-8 inside the anus, usually very small. In case of anal sinusitis or anal fistula, anal fissure, hemorrhoids, constipation and anal pruritus, it can cause proliferative enlargement of the anal papillae and prolapse outside the anus, forming papillitis or papillomegaly, and some can present papillomas, but not tumors. The surface of the anal papilla is covered with smooth creamy white or light red skin that is arranged along the dentate line. Usually when the anal papillae are enlarged and hyperplastic to anal papilloma or anal papillitis, the clinical manifestations are mostly prolapse, pain, anal dampness, itching, and even anal swelling.