Generally speaking, after external hemorrhoid surgery, for patients who need to undergo anal dilatation treatment, to be able to stretch into 2-3 fingers is good. For hemorrhoid surgery, patients with anal stenosis, the need for anal dilatation treatment, and the standard for anal dilatation is generally 2-3 fingers in the anus into the anus, the anus will not feel very tight can be. Anal dilation treatment is to ensure normal defecation, and according to the different conditions of different patients, the number of times of anal dilation, the degree of dilation are different. Hemorrhoid patients should also eat a light diet after surgery, avoid spicy stimulating food, quit smoking and alcohol, so as not to affect the wound healing and recovery. To expand the anus treatment should also be carried out in a regular hospital, it is recommended that the professional doctor to give the expansion of the anus operation, it is not recommended to treat at home, to avoid improper expansion of the anus operation caused by the secondary damage and other adverse factors.