The black tongue indicates that the child’s spleen and stomach are not in harmony, which leads to a decline in intestinal function, resulting in tongue stasis, if the spleen and stomach adjusted over, all this will be solved. Try not to feed your child too much, children sometimes do not know whether they are full, give him to eat he ate, eat too much, the stomach can not withstand, naturally poor digestion. Chinese medicine believes that the black tongue coating is the result of heat extreme fire, but also some people with gastrointestinal problems, easy to produce cold and dampness, the tongue will become thick and greasy, the beginning of the white, and gradually become yellow or black, black tongue coating patients will find that the middle of the tongue is always black tongue coating. Specifically which need to go to the hospital for examination and treatment.