It is not true that looking at the tongue to know the disease is not true; tongue coating can provide information about the condition, but other diagnoses are needed to determine the disease. Tongue moss, is a layer of moss scattered on the tongue, from the stomach gas upward fumigation of the stomach grain, food turbidity, cohesion in the tongue formation, by looking at the tongue moss can get about the disease part of the useful information.
By looking at the tongue coating, you can get some useful information about the disease. For example, the thickness of the tongue coating mainly reflects the strength and weakness of the evil and the depth of the evil; the tongue coating is moist and dry, mainly reflecting the surplus and deficit of the fluid and the transmission and distribution of the situation; greasy rotting moss, the Lord of phlegm, food accumulation (indigestion of food and the accumulation of food in the stomach); peeling off the moss of the Lord of the stomach qi insufficiency, gastric yin damage or qi and blood deficiencies.
True and false moss to identify the severity of the disease, the prognosis is important and meaningful, such as the early, middle stage of the disease, the tongue to see the real moss and thick, for the stomach qi congestion and solid, the disease is more serious; see the real moss of the long-term disease, indicating that the stomach qi is still alive. False moss in long-term disease, is the lack of stomach gas, can not be on the tide, the condition is critical; tongue floating layer of thick moss, look like rootless, scraping, but see there has been a thin new moss, is the disease to the healing of the good weather.
In addition, white moss Lord normal, surface evidence or cold evidence; yellow moss Lord heat evidence, internal evidence; gray and black moss Lord Yin cold or internal heat blazing (body heat evil serious) and so on.
Tongue moss observation also needs to be in a well-lit place, avoid eating food that will have an effect on the tongue moss, such as oranges. Look at the tongue belongs to the contents of Chinese medicine tongue diagnosis, need to professional Chinese medicine doctors to judge, at the same time need to look, smell, ask and check, four diagnosis together to determine the disease, only look at the tongue is unable to determine the disease.