What happened to tongue shedding?

Tongue coating shedding, generally caused by yin deficiency. Tongue coating is a layer of coating on the tongue surface. Traditional Chinese medicine believes that tongue coating is caused by steaming of stomach qi. Tongue coating shedding, also known as peeling coating, is the original tongue coating, suddenly showing peeling, tongue coating peeling place bald, bottom. The cause of tongue coating peeling, generally caused by stomach qi deficiency, stomach yin deficiency. Often accompanied by poor appetite, dry mouth, fatigue and weakness. If the original tongue coating is thick and greasy, showing peeling coating, but there is a new thin white coating in the peeling place, this is the performance that evil qi will go and stomach qi will slowly recover.