Difficulty in bowel movement four months after hemorrhoid surgery may be related to constipation, anal sphincter necrosis and spasm. Hemorrhoid surgery four months after the difficulty of stool may be related to constipation, the usual nutrition is too single, lack of fiber on the colon to reduce the stimulation of movement, long-term no bowel movement leads to fecal water is absorbed, feces become more dry and difficult to discharge. Some people are through the traditional external peeling and internal ligation and other surgical methods of treatment, there are hemorrhoidal nuclei exist in the anus, hemorrhoidal nuclei of the obstruction and hemorrhoidal nuclei produced by the irritation of the symptoms, so that the anus in the intestinal tract of inflammatory stimulation, so that the sphincter muscle is in a constant necrosis and spasm, the anus appeared to be narrow and defecation difficulties in the symptom. Difficulty in bowel movement four months after hemorrhoid surgery, there may be other reasons, such as symptoms continue to be unable to relieve, it is recommended that the patient promptly go to the hospital for a series of examinations, to clarify the cause of the disease, and give treatment.