Frequent dry stool may be caused by the following reasons: First, some people have poor gastrointestinal function and slow intestinal peristalsis, so that the water in the stool is over-absorbed, and after a long time, dry stool and constipation appear. Probiotics and yogurt can help promote intestinal peristalsis and alleviate this situation. Second, it may be because patients drink too little water or eat too little, which leads to frequent dry stools. In this case, it is necessary to drink more water and exercise more. Third, some patients usually eat less cellulose vegetables and fruits because of unreasonable diet structure, which leads to dry stools. This situation can be solved by adjusting your usual diet. Fourth, we should also consider the causes of drugs. For example, taking drugs for treating hypertension and diabetes often can easily cause dry stool, which can be solved by changing drugs at the doctor's suggestion.