The symptoms of indigestion and accumulation of food in children are usually manifested in the following aspects: first, the child’s appetite usually decreases, and there is not much interest in food, and after eating, nausea, vomiting, bloating, and even diarrhea easily occur; second, the child’s indigestion and gas accumulation in the gastrointestinal tract increases, and it is usually easy to fart and the farts are smelly, which is caused by indigestion and the increased content of hydrogen sulfide in the farts; third. Indigestion, accumulation of food for a long time, usually affect the child’s nutrition, growth and development, usually have varying degrees of malnutrition, weight, height does not reach the normal value of the same age, the same sex baby range; fourth, indigestion, accumulation of food children, digestive function is reduced, resistance is also reduced, easy to appear digestive or respiratory infectious diseases, such as viral enteritis, bacterial enteritis or pneumonia and other conditions.