9 months baby dry stool regulation methods include: reasonable diet, increase water intake, appropriate exercise, etc., if necessary, need to seek medical treatment. 1. Reasonable diet: 9-month-old babies have added a certain percentage of complementary foods, you can give your baby more green vegetables, fruits and other foods, these foods are rich in fiber, which can promote intestinal peristalsis and help relieve dry stools. 2. Increase water intake: 9-month-old babies can drink a small amount of water in addition to milk and complementary foods, appropriate water can alleviate the situation of dry stools. 3. Appropriate exercise: daily can give the baby to increase activities, more let the baby crawl, sit and stand, appropriate massage abdomen can promote intestinal activity, in addition can also regularly let the baby defecate, develop a bowel regularity, can also be effective in relieving dry stools. Nine-month-old babies if the dry stool situation is serious, resulting in blood in the stool, affecting sleep, poor diet and other situations, it is recommended that timely medical treatment.