It is not normal for the elderly to have a bowel movement once every four or five days, which is a sign of constipation. It may be caused by physiological reasons, hemorrhoids, chronic enteritis and other diseases. 1. physiological reasons: the elderly due to intestinal peristalsis slowdown, dietary changes and other factors, may lead to the elderly patients to reduce the number of bowel movements, defecation difficulties and other symptoms, which led to the phenomenon of the elderly four or five days a stool phenomenon occurs. 2. Hemorrhoids: Older people who suffer from hemorrhoids, will lead to the phenomenon of less frequent bowel movements. The typical symptoms of hemorrhoids are constipation, difficulty in defecation, blood in the stool and other symptoms, thus leading to the elderly four or five days a stool. 3. Chronic enteritis: chronic enteritis can lead to digestive difficulties, abdominal pain, abdominal distension and other diseases, which led to the phenomenon of constipation, which triggered the elderly four or five days a stool. Irregular bowel movements should immediately seek medical attention, under the guidance of the doctor for the cause of the treatment, and strive for early relief of symptoms to avoid the development of the disease.