There are many clinical reasons for a child’s thick white tongue, such as indigestion, cold or milk scum, all of which can lead to a child’s thick white tongue, which needs to be identified and then treated symptomatically, usually with good results. The unweaned infants usually have a diet based on breast milk or milk powder, and these children will have milk or milk powder residue on their tongues because they eat milk every day, forming a thick white tongue. Some children may have thick and greasy tongue due to indigestion, which is mainly caused by weak spleen and stomach or improper diet. These children can drink more water and choose to take some probiotics or digestive drugs to relieve the symptoms, while paying attention to a light diet, do not let children eat indigestible food, add milk powder regularly and quantitatively, do not add too much supplementary food, and do not eat too much indigestible meat. In addition to oral medication, you can also treat indigestion by giving your child pediatric massage. Pediatric massage is a treatment technique often used clinically to relieve bloating and diarrhea caused by a weak spleen and stomach, playing a two-way regulatory role, and pure green, no side effects, fast results. In summary, children with thick white tongue need not be alarmed, and can be cured after symptomatic treatment.