Because of the repetition with the above, I checked some more:
Tongue coating is too white: mostly cold syndrome, thin and slippery mostly due to exogenous wind-cold, thick and white and slippery mostly due to cold dampness or cold phlegm. But clinically, there are also internal symptoms of fever and white tongue coating. According to the research of modern tongue diagnosis, it is considered that white fur can mainly appear in the following situations:
First, except normal people and patients, white fur can be seen in mild diseases, initial symptoms and signs, and recovery period of diseases. Because the lesions in the machine are not obvious, the changes of tongue coating are close to normal thin white tongue coating. ,
In the recovery period of various diseases, although yellow, black or red fur may appear in the serious stage of various diseases, with the improvement of the disease and the recovery of qi produced by the spleen and stomach, the tongue coating can still turn thin and white.
Some diseases, such as neurasthenia and gastrointestinal neurosis, have only the main symptoms without organic lesions, and the tongue coating is white and thin.
The early or local lesions of the disease do not affect the local lesions of the whole body, such as juvenile goiter, trauma, tinea pedis, plum blossom, early breast cancer, cervical cancer and so on. Due to early asymptomatic or limited lesions, the tongue coating is still thin and white, which belongs to the normal range. But if the disease develops, the tongue coating will also change.
Initial symptoms: such as upper respiratory tract infection, acute bronchitis and early pneumonia. White hair is more common.
Secondly, white fur can appear in those with damp resistance or turbid phlegm. Clinically, some patients have pleural effusion, ascites, chronic nephritis, asthma, chronic bronchitis, bronchiectasis and so on. Wet or phlegm stays in the body, resulting in thick white or greasy tongue coating. From the point of view of modern medicine, it may be that there is more saliva secretion in the mouth and more sputum secretion in the trachea, which softens the keratinocytes or keratinocytes of the tongue and makes the cells swell and not easy to fall off; In addition, tongue tissue edema, lymphatic reflux disorder, old keratinocytes on the tongue surface do not fall off, and new keratinocytes increase and accumulate, so the tongue is swollen and the tongue coating is white and thick.
Third, various chronic inflammatory infections can be seen in white fur, such as chronic pelvic inflammatory disease, chronic pyelonephritis, tuberculous meningitis and bone and joint tuberculosis. These patients have only mild low fever or no fever. Because there are chronic diseases in the body, the tongue coating is often slightly thicker than normal, or thin and white. When the pathological changes in the body tend to be active or acute, such as pyelonephritis with high fever, the tongue coating can quickly turn from white to yellow or from red to crimson. (transferred from hongzz)