Nine-month-old babies with dry stools in the form of hard balls are usually associated with improper feeding practices and constipation, which need to be judged and adjusted according to the baby’s habits and specific symptoms as well as examination results. Common causes and treatment 1, improper feeding: baby eating more single, more protein and less carbohydrates, or eating less breast milk, milk powder, digested by the gastrointestinal tract water is absorbed, the remaining residue is less and dry, there will be dry stools. You can give the child the appropriate addition of complementary foods, such as porridge, vegetables, boiled noodles, etc., breastfeeding mothers should also pay attention to their own dietary structure, appropriate to eat more carbohydrates, crude fiber vegetables, relatively reduce the intake of protein; 2, constipation: the baby’s age, the development of gastrointestinal function has not yet been perfected, the intestinal peristalsis of the slower after eating, can appear constipation symptoms. Parents can let the child take probiotics, adjust the intestinal flora, or help the baby massage the abdomen, promote intestinal peristalsis, if the constipation is more serious, you can also take lactulose orally, by increasing the osmotic pressure of the intestinal tract to change the nature of the stool, stimulate intestinal peristalsis to accelerate defecation. Precautions in daily life should increase the baby’s water intake, eat more fruits and vegetables for the baby, to the baby to develop the habit of regular defecation, if necessary, you can also give the child to take dietary fiber powder, promote defecation.