Yang deficiency is characterized by cold limbs, fear of cold, and a white complexion. Cold limbs, fear of cold, white color, or spontaneous sweating (involuntary sweating during the day, aggravated by sweating with a little movement), pale mouth, no thirst, or liking for hot drinks, thin stools, urination and swelling, or long and clear urine, pale, fat and tender tongue, white slippery moss, and dull and weak pulse. It may be accompanied by symptoms of qi deficiency such as shortness of breath, fatigue (lack of spirit) and weakness. Due to the deficiency of yang qi, the body is not warm, so see the fear of cold, cold limbs; yang deficiency of water and dampness can not be transformed, the fluid can not be up to bear, so see like hot drinks or thirst; yang deficiency of weiyang (in the surface of the yang qi) is not enough, the couper (pores) is not solid (consolidation), then see the self-sweat (daytime involuntary sweating, a little sweating aggravated by the movement). Yang deficiency of water does not transport, water, water, water overflow, so see swelling, white face, moss white slippery, tongue pale fat tender; Yang deficiency of qi power, so there is little urine or urine clear long, thin stools; Yang deficiency to promote the lack of power, then the pulse is slow and weak, or see shortness of breath, fatigue (mental exhaustion, physical weakness) and other symptoms of qi deficiency. If any of the above symptoms occur, one should consult a doctor promptly to avoid delaying the condition.