Gray face is generally related to the heart, spleen and stomach, according to the theory of traditional Chinese medicine, the heart is the master of the blood, its Hua in the face, that is, the heart color is reflected in the face, the whole of the blood in various parts of the body to rely on the heart to promote the operation, so that each organ can play a normal function, and the face is the body’s blood vessels are the most abundant parts of the distribution of the density of the blood is very high, so the blood flow is very rich. The heart’s function will be the first reaction from the color of the face, if the face is red, indicating that the heart is sufficient, the blood circulation is smooth. If the color of the face is gray, it means that the heart qi is insufficient or stagnation of the heart qi leads to poor blood flow, so patients with insufficient heart yang or stagnation of the blood vessels can have a grayish color of the face. At the same time, there is also a relationship with the spleen and stomach, the spleen and stomach is the source of qi and blood biochemistry, only when there is sufficient qi and blood, the blood can have a normal supply of material basis. If the spleen is deficient and the qi and blood are deficient, the facial blood vessels will not be nourished and will also become gray.