Thick and white tongue coating at the root of the tongue can tonify kidney yang. Thick and white tongue coating at the root of the tongue is generally considered to be the presence of insufficient kidney yang and internal stagnation of water-dampness (water-dampness stays in the body), etc. It can be treated by tonifying the kidney yang and transforming qi to promote diuresis. According to Chinese medicine, the health of the root of the tongue has a greater relationship with the kidneys. When the root of the tongue shows symptoms such as thick and white tongue coating, it may be caused by problems with kidney function, such as insufficient kidney yang. Moreover, most of the patients with this symptom may also be accompanied by symptoms such as soreness and weakness of the waist and knees, coldness and coldness of the limbs, and some women may even suffer from uterine cold and infertility, which are typical symptoms of kidney yang deficiency, and therefore can be treated by tonifying the kidney yang. At the same time of treatment, patients not only need to tonify kidney yang, but also pay attention to dispel dampness, the treatment is relatively complex, so it is recommended that patients should pay attention to under the guidance of professional doctors to receive professional treatment. At the same time, the patient should also pay attention to appropriate exercise to improve the quality of the body, and exercise is also able to improve the body’s yang qi, can make the effect of treatment better.