Difficult to relieve stool, the more common reasons are the following: 1, slow gastrointestinal peristalsis. Causes of slow gastrointestinal peristalsis is also divided into a variety of reasons, most commonly people who do not love exercise, gastrointestinal peristalsis is relatively slow, causing the emptying of the stomach and intestines slowed down, easily leading to dry stools, difficult; another reason is that the older the elderly, the worse the gastrointestinal function, the slower peristalsis; there is a part of the diet part of the drug, resulting in slowing down the peristalsis of the intestines; there are some people are caused by disease, such as diabetes, etc. Causes. 2, eating food that is not easy to digest, long-term eating greasy, not easy to digest food, also easy to cause the dryness of the stool, discharge difficulties. 3, a small number of people are congenitally long intestinal tract, the intestine is longer than normal, the discharge is relatively difficult.