Normally, an anal dilation is performed for 20 minutes at a time for a relatively long period of time, 3 to 5 minutes is appropriate. For patients with anal diseases, such as hemorrhoids, anal fissure, etc., after surgical treatment, in order to prevent and treat anal stenosis, will choose to expand the anus treatment. Expansion of the general choice of about 1 week after surgery, each expansion of 3 to 5 minutes is appropriate, step by step, that is, the beginning of a finger, slowly expanding for the three fingers, to be expanded to about 3cm and the fingers do not have a sense of constriction is good. In addition, such people are recommended to pay attention to rest in daily life, pay attention to eat a light diet, eat more fresh fruits and vegetables, drink more water, and appropriate activities, which is conducive to the discharge of feces, and is also conducive to the recovery of the disease. For those who need anal dilation treatment, it is recommended to follow the doctor’s instructions or have a regular doctor to carry out anal dilation treatment, so as to achieve the best therapeutic effect.