Nearly three years after hemorrhoid surgery the stool has been very thin, the first thing to consider is the formation of postoperative complications related to anal canal stenosis caused by thinning stools. Three years after hemorrhoid surgery, the stool becomes thin, more consideration of the organic lesions formed by the surgery, rather than hemorrhoid surgery edema and other conditions. At present, hemorrhoid surgery will often cause anal stenosis, often forming postoperative scar, scar elasticity is poor, can also cause stool thinning, scarring can cause severe defecation difficulties, and even intestinal obstruction. In general, for a long time stool thinning, you can first from the diet to regulate, appropriate to eat some crude fiber food, avoid spicy stimulating food, and at the same time to strengthen the daily care, to keep the perianal clean to prevent infection, if a long time has not been improved or even the emergence of serious intestinal obstruction symptoms, the need for another surgical treatment. Hemorrhoid surgery nearly three years after the stool has been fine, it is recommended that patients go to the hospital as soon as possible, follow the doctor’s instructions to give targeted treatment to avoid aggravation of the condition.