Tongue moss is white and greasy, fat side with teeth marks and cracks for spleen and kidney yang deficiency (spleen and kidney yang deficiency), fluid distribution obstacles, water and dampness of the evil stagnation in the body performance. From the point of view of Chinese medicine, the spleen and stomach have the function of transporting and transforming the fluid of the whole body, if the spleen and stomach lose its function of transporting and transforming, then the fluid of the whole body has nowhere to be dispersed and coalesce to form phlegm-dampness, and at this time the evil of phlegm-dampness accumulates in the body, which will make the tongue appear big and fat, with white and greasy fur, and with tooth marks on the side. If the phlegm-dampness is not relieved for a long time, the phlegm-dampness will affect the normal distribution of water in the body, resulting in the lack of fluid in the body, which will cause the tongue to crack. When patients find that their tongue is white and greasy, their tongue is fat and large, and there are teeth marks on the side and cracks on the tongue, it is recommended to pay enough attention and go to the hospital in a timely manner.