Tongue diagnosis is a simple and effective method to assist diagnosis and differentiation by observing the changes of tongue color and morphology. Tongue diagnosis, diagnostic terminology. It is one of the key contents of the visit. Observation index.

The tongue is the seedling of the heart, waiting outside the spleen, and the coating is born of stomach qi. Zang-fu organs are connected with the tongue through meridians, which is an important part of TCM diagnosis of diseases. The difference between hand and tongue is tongue root, foot yin pulse is tongue root, foot yin pulse is tongue root, foot Taiyin pulse is tongue root. Therefore, the pathological changes of zang-fu organs can be reflected in the tongue quality and tongue coating. Tongue diagnosis is mainly to investigate the shape, color and dryness of tongue quality and tongue coating, so as to judge the nature, depth and severity of the disease.