The possible reasons for the baby’s thick white tongue are: a. Consider milk scale, children drink milk for a long time, saliva secretion is less, the oral self-cleaning ability is also poor, milk stains caused by the precipitation of thick white tongue. Second, caused by indigestion, within 6 months of the baby’s digestive system is not mature, gastric acid and digestive enzymes and other secretion less, may appear indigestion phenomenon. Third, caused by fire, as long as the baby mainly eats milk, tongue moss will become very thick, need to observe whether the child’s stool is dry, consider the baby lack of water or fire, children on fire will easily appear internal stagnation of the body heat, do not want to eat, easy to irritable and other conditions. Fourth, the abdomen is cold, not in time to cover the child when sleeping at night, the abdomen is cold leading to indigestion in children, and eventually appear thick white tongue coating, also consider pathological diseases, parents are advised to pay more attention to observe.