Infants and young children have poor gastrointestinal defense function, if improper feeding, bacterial and viral infections can easily lead to indigestion. So in terms of conditioning should have the following precautions: 1, feeding on time and in the right amount, whether it is formula feeding or breastfeeding, infants and young children over four months should be given on time feeding, pay attention to the amount of milk on the amount of food to be appropriate, according to the individual baby. For children who do not have a strong sense of satiety, which can easily cause accumulation of food, thus leading to indigestion, parents must master the right amount. The metabolism time of milk powder in the gastrointestinal tract is 3-4 hours, and the metabolism time of breast milk is 2-3 hours, so according to the time and the child’s usual meal size, give the appropriate diet. 2, bacterial and viral acute infection will lead to gastroenteritis, the child will be accompanied by fever, nausea, vomiting, irritability, drowsiness, dehydration symptoms, such a problem, you need to promptly check the stool and blood, to identify the cause of symptomatic treatment, and must be supplemented with the appropriate oral rehydration salt solution. In case of viral infection, lactose intolerance can easily develop secondary to lactose free milk powder or supplementary food as the mainstay, which can bring relief and speed up recovery. 3. If you have been showing poor appetite, dry or thin stools, it is recommended that you can use traditional Chinese medicine methods to regulate the poor gastrointestinal condition of infants and children, and identify the causes before you can deal with the symptoms, so as not to affect the growth and development of children.