Chinese medicine believes that the tongue is thick with cracks and is mostly related to factors such as spleen deficiency and dampness, heat and fluid injury. 1. Spleen deficiency and dampness: the situation of the tongue for the tongue pale moss white thick and greasy, cracks, this is due to the body’s dampness is heavier, blocking the spleen yang caused. Spleen deficiency is incapable of transporting water and dampness, dampness on the tongue can be white and greasy, in addition to the weakness of the spleen Yang, unable to putrefy (initial digestion of food, the formation of celiac disease), the stomach can not be fumigation of the tongue is pale, cracked tongue coating. 2. Heat and fluid injury: the tongue of the situation is manifested as a red tongue, yellow moss, thick and dry, cracks, which is due to the body heat evil more prevalent, yin loss and fluid depletion caused by. The body heat evil is more prevalent, easy to force the blood to run, accelerate the speed of blood running, so the tongue red, in addition to the heat evil depletion of fluid, resulting in the loss of fluid can not moisten in the tongue, so the tongue moss is yellow, thick and dry, cracks in the. Patients with thick and cracked tongue coating are advised to go to regular hospitals for treatment under the guidance of professional physicians.