Why do old Chinese doctors have to look at tongue coating when they see a doctor? Is there any basis?

In Chinese medicine, looking at the tongue (tongue coating) is also called "tongue diagnosis". Chinese medicine believes that the lesions of human internal organs can often be reflected on the tongue. Therefore, doctors often observe the color, thickness, dryness and other changes of tongue coating to help judge whether the disease is in the exterior or in the interior, and whether the disease is cold or hot.

"Pale red tongue, thin white coating", healthy tongue coating should be pale red, with a layer of thin white coating with uniform particles and moderate humidity on the tongue surface. If you find that the color of the tongue coating is abnormal, you should pay attention.

The fur is white and greasy.

White and thick tongue coating indicates that there is cold and dampness in the body. Whether eating cold food or catching cold, the tongue coating will turn white.

In addition, in daily life, the tongue body is hypertrophy and the tongue coating is white and thick, which is more common in patients with body fat obesity and abnormal spleen and stomach transport, leading to edema and excessive phlegm. Patients with hyperlipidemia, arteriosclerosis and hypertension also have thick white greasy fur.

Conditioning principle: eat less cold food; Keep warm; Keep exercising.

The title of four words, the fur is yellow and sticky.

If you see a thick layer of yellow and white dirt on your tongue, the tongue coating is sticky and thick, which is not easy to scrape off. There is a sour smell in the mouth, accompanied by poor appetite and dry stool, indicating that the stomach fire is too strong and the spleen and stomach are not good.

This situation is probably caused by overeating, eating too much greasy food, and poor digestive function of the spleen and stomach.

Conditioning principle: adjust the diet structure, and the diet is reasonable, healthy and light.

Black tongue coating

If you eat some medicine or food in your life, your tongue coating will turn black, so don't be too nervous.

However, it is worth noting that the tongue images of patients with chronic asthmatic bronchitis, emphysema, lung cancer, gastric cancer and chronic renal failure are mostly black fur, which needs attention and active treatment in order to recover as soon as possible.

Conditioning principle:? Follow the doctor's advice, see clearly the condition, and actively cooperate with the doctor for conditioning treatment.

Flaking of tongue coating

All or part of the tongue coating falls off, which is called shedding coating; The tongue coating falls off completely, making the tongue surface smooth as a mirror, which is called' light stripping tongue' and' mirror tongue'; If the tongue coating is not completely peeled off, the peeling place is smooth and without coating, and the residual spots are mottled and the boundaries are obvious, it is called' flower peeling'.

The loss of tongue coating indicates that stomach qi deficiency, stomach yin failure or deficiency of both qi and blood are manifestations of general weakness.

Conditioning principle: tonify qi and blood and enhance immunity. It is suggested that the daily diet should be light and eat more fruits and vegetables that are beneficial to the spleen and stomach, such as yam and barley. Actively exercise to enhance the body's immune function.