Tongue coating white thick and greasy is usually due to the body of cold and damp, phlegm and damp, food stagnation (food indigestion and stagnation in the stomach) heavier caused by other conditions. 1. Cold-dampness: cold stagnation, easy to affect the function of the spleen and stomach, resulting in qi and blood can not be glorified, so the white moss, coupled with moisture viscous, moss is thicker and greasier, cold and dampness are combined to present for the white greasy thick moss. 2. Phlegm-dampness: Phlegm-dampness is heavy, indicating that the body’s water transportation obstacles, water coagulation, dampness into phlegm. Usually for patients with spleen and stomach yang deficiency, yang qi deficiency is white tongue, phlegm dampness is thick and greasy moss. 3. Accumulation of food: Most of the patients with accumulation of food have obstacles in the digestive system, and the function of putrefaction (the initial digestion of food, the formation of celiac disease) of water and grain is weakened. Usually weak spleen and stomach, tongue coating white, food accumulation is heavier, stomach qi fumigation tongue coating, was thick and greasy. If the patient is not feeling well, it is recommended to consult a doctor promptly. If the corresponding tongue coating, should be combined with other symptoms, identify the causes of standardized treatment, so as to avoid delay in the condition.