Tongue Diagnosis in Looking Diagnosis of Chinese Medicine

Tongue diagnosis is the most characteristic diagnosing method in looking diagnosis of Chinese Medicine. Tongue diagnosis includes looking tongue body and tongue coating which means the coated fur on the surface of tongue body. Tongue body can show the condition of healthy body energy while tongue coating can show the severity of evil factors in human body. If external evil factors enter human body and affect digestive function of stomach and spleen, tongue coating will become thick. If tongue surface is smooth, just like a mirror, it usually means too much weak healthy body energy.

The reason why tongue coating can reflect disease is that tongue has a close relationship with internal organs through stomach Qi connection. Stomach Qi refers to the functional condition of stomach and spleen. Its physical and pathological condition has very important influence on other internal organs.


Tongue observation in Chinese Medicine includes observing color of tongue body, color and thickness of tongue coating as well as tongue shape and other factors. In clinical practice, tongue condition can reflect the physical and pathological condition of organic body more correctly, so people usually consider tongue as a mirror of body physical and pathological condition.