How to distinguish between kidney yin deficiency and yang deficiency

Kidney yin deficiency and kidney yang deficiency differentiation method, mainly according to the patient's symptoms to judge. If the patient has fear of heat, excessive sweating, irritability, cheekbones redness and other symptoms, it is kidney yin deficiency. If the patient has fear of cold, fatigue, waist and leg pain and shortness of breath lazy language and other symptoms, it should be considered kidney yang deficiency.