Tongue coating refers to a thin layer of dirt covering the surface of the tongue, which is an important content of tongue diagnosis in traditional Chinese medicine. By observing the texture and color of tongue coating, doctors can infer the deficiency and deficiency of patients' viscera function, distinguish the strength of digestive function and reflect the depth and nature of diseases. Normal people's tongue coating should be thin and white. If there is something wrong with the body, the thickness of the tongue coating will change. If the tongue coating turns from thin to thick, it means that the disease is from the outside to the inside, accompanied by symptoms such as indigestion, abdominal distension and nausea. The tongue coating is greasy and rotten, which may be due to phlegm dampness or food accumulation in the body. In addition, the tongue coating becomes thick and greasy, which may also be due to loss of appetite after illness, frequent eating of soft food and liquid, which reduces the mechanical friction effect of the tongue, or because of fever and dehydration, saliva secretion is reduced, and cleaning effect is reduced, which affects the self-cleaning effect of the tongue and accumulates exudates on the tongue surface. So once the tongue coating becomes thick and greasy, or the color is black and smelly, you should go to the hospital first. If you shave yourself first, it will affect the doctor's diagnosis.
Frequent scraping of tongue coating will stimulate taste buds, damage tongue nipples, cause numbness of tongue roots, reduce taste and appetite, and then affect health.
In order to maintain oral hygiene, some simple methods can be used to clean the tongue surface. Including gently brushing the tongue surface with a special soft brush. If you can't buy a special soft brush, you can use a toothbrush, but you must not use too much force. You can also rinse your mouth with salt water and mouthwash, or rinse the root of your tongue with a tooth washer. Remember not to scrape the tongue coating with hard plates and sharp things.