Chinese medicine diagnosis needs to combine the tongue and pulse to determine the symptoms, the pulse is not generally understood, but the tongue changes are visible, the tongue changes always reflect the changes in body functions, the normal tongue color is light red, there is thin white tongue moss, is dry and wet moderate state, such as the tongue produces changes, then the body occurred in different situations of change. This suggests that problems should be noted. If the tongue moss is red it can indicate a variety of conditions causing it. Heavy heat, blood stasis and yin deficiency can all cause a red tongue or a purple tongue. In addition to red tongue, Yin deficiency can be accompanied by insomnia and dreaminess, dry mouth and dry tongue, which are clinically called Yin deficiency and fire, and can be regulated by tea, such as bamboo leaf green, green tea, Chinese wolfberry and cassia seeds. Blood stasis, in addition to red tongue texture can be accompanied by red or purple petechiae, suggesting that there is blood stasis in the body has not been discharged, need to strengthen the movement, increase blood circulation, appropriate to take blood circulation tea conditioning, hawthorn, safflower, angelica, etc. can be. Patients with heavier heat can also have symptoms such as heartburn, shortness of breath, body heat and irritability in addition to an infrared tongue, so they need to see a Chinese medicine specialist for medication to avoid hurting their yin. Normal men will also have a red tongue because they have enough yang energy, there is no need to worry too much, this is a normal phenomenon. In general, the red tongue should be taken in addition to the symptomatic dampness drugs, but also should pay attention to the diet to light, avoid spicy and stimulating food, less fried food, in order to get twice the result with half the effort, the medicine to the disease.