A white, dry tongue and thick moss with teeth marks generally represents a spleen deficiency with dampness and internal storage of water-dampness (water-dampness stays in the body). First of all, a white, dry tongue mostly indicates that there is dampness in the spleen and stomach, and the moss is generated by the stomach qi. Spleen deficiency is not able to transport and transform the essence of water and grains, which leads to the internal suspension of water-dampness, so there will be a white tongue and thick moss. Secondly, there are teeth marks on the tongue, which means that dampness in the body is relatively heavy, and dampness leads to poor transportation of qi and blood, and the tongue is larger than normal, and teeth marks are formed when the sides are squeezed by the teeth. If the symptoms of white, dry tongue and thick moss with teeth marks are persistent, it is recommended to go to a regular medical institution and consult and adjust under the guidance of a professional Chinese doctor.