The reason for the enlargement of the anal papilla is the following: 1, because of the human physique, the body dampness is relatively large, and usually regularly eat cold, damp food, resulting in body weakness caused by the anal papilla enlargement. 2, usually poor dietary habits caused by the regular eating spicy, stimulating things, or stir-fry put more seasoning, these things are not easily absorbed by the intestines, in the anal canal will continue to stimulate the rectal mucosa.