The white and very thick tongue of a small baby is mainly due to the following conditions. Firstly, it is caused by functional indigestion, because the diet of small children is often milk-based. If a child drinks more milk than the child can digest, the milk will collect in the gastrointestinal tract, causing not only bloating, abdominal pain, but also loose stools. At this time, the child’s tongue is often very thick and white in color. For functional dyspepsia, parents can give their children medications that eliminate food and lead to stagnation, such as the application of large hawthorn pill and so on. Secondly, it is caused by the presence of cold and dampness in the body. If the child usually eats more raw and cold food, or eats more cold drinks, the cold dampness in the body is heavier. In this case, the child’s tongue is also white and very thick. Parents can give their children appropriate ginger juice, for cold dampness has a certain improvement effect.