Tongue diagnosis in traditional Chinese medicine

In fact, tongue diagnosis in traditional Chinese medicine is still more important. Tongue diagnosis is a dialectical method that Chinese medicine must master. Tongue coating is particularly important in tongue diagnosis. From the theory of traditional Chinese medicine, by observing the color of tongue, we can know the nature of disease and the deficiency and excess of healthy qi; Looking at the tongue coating can distinguish the depth of pathogenic qi from the retention or abolition of stomach qi; Re-examination of moistening dryness can investigate the changes of six evils and the damage of body fluid.

It is well-founded to diagnose diseases by looking at the tongue. Chinese medicine believes that the tongue is the seedling of the heart, and the human body has many meridians. Therefore, the changes of meridians and viscera, Wei Ying's qi and blood, exterior and interior yin and yang, cold and heat deficiency and excess can all be formed in the tongue. Tongue coating is fumigated by stomach gas, which is manifested on the tongue mucosa. All five zang-organs contain stomach gas, so it can be used to diagnose the deficiency of cold and heat in five zang-organs. Tongue diagnosis is mainly based on the changes of the shape, color and moistening dryness of tongue and coating, so as to distinguish the nature of pathogenic factors, identify the syndrome types of protecting qi and nourishing blood, and judge the retention and waste of body fluids.

Traditional Chinese medicine divides the tongue body into triple energizer, and the tongue is divided into four parts: the tip of the tongue, the middle of the tongue, the base of the tongue and the edge of the tongue. In TCM tongue diagnosis, the tongue body is divided into upper, middle and lower jiao, with the upper jiao as the top, the middle jiao as the middle jiao and the lower jiao as the root. Its viscera belong to: the tip of the tongue waits for the heart and lungs; Spleen and stomach are in the tongue; Both sides of the tongue are waiting for the liver and gallbladder; Root of tongue waiting for kidney.

Some foreign scholars have measured it with acupuncture measuring instrument; In the projection of the tongue, the upper part of the body is equivalent to the front of the tongue, and the lower part is equivalent to the back of the tongue. This is basically consistent with the division method of traditional Chinese medicine, that is, the tip of the tongue governs the heart and lungs, the spleen and stomach are in the tongue, the liver and gallbladder are at the edge of the tongue, and the kidney is at the root of the tongue.

The following is the corresponding distribution map of tongue and viscera, which can understand the division of tongue and the relationship between tongue and viscera more intuitively.