Tongue is regarded as a mirror to reflect healthly state of boby since it brings information on colness and heat, deficiency and excessiveness, dryness and humidness and other pathologic changes.

• 舌的变化能够反映出体内的寒热、虚实、燥湿等病变,因此被视为人体脏腑健康与否的一面镜子。