The theoretical basis of face-to-face diagnosis-facial changes are closely related to visceral diseases. When visceral diseases occur, they are reflected on the face. Because the face is the external glory of qi and blood of zang-fu organs and the gathering of meridians, there is a saying that "the twelve meridians" has 365 collaterals, and all its qi and blood are on the face, leaving an empty orifice ". The facial collaterals are rich, the qi and blood are full, the facial skin is thin and tender, and the color change is easy to show. "Examine the concept of classics. The corresponding Five-color Compendium says, "If you taste the method in Neijing, you think that the five colors are outside, the five internal organs should be inside, and the branches and leaves are still the foundation. Color and pulse-shaped meat can't lose each other, so if you are sick, you will be colored, and you will be attacked inside and outside, such as shadows and drums. . Therefore, the ups and downs of qi and blood of zang-fu organs and the disturbance of qi and blood by pathogenic factors will be reflected in the face. From the observation of the face, we can not only diagnose the facial lesions themselves, but also understand the rise and fall of healthy qi and the depth of pathogenic factors, infer the progress of the disease and determine its prognosis. Therefore, face-to-face diagnosis is of great significance in diagnostics.
The face reflects the physiological information of all parts of the whole, making the face a microcosm of the whole integrity. Every part of the face belongs to different viscera, which is the basis of face diagnosis. Ancient and modern facial classification is different. The traditional facial viscera is formed on the basis of the theory of viscera, qi and blood and meridians in Neijing. Modern facial parts are formed under the guidance of biological holographic theory, which presents an inverted visceral figure on the face, that is, the miniature of the whole viscera on the face.