Kidney yang deficiency means that the yang energy in the kidney is insufficient to warm the body. The overall manifestation of kidney yang deficiency is “cold” symptoms, such as sore waist, cold hands and feet, fear of cold and wind, edema, mental weakness, infertility, etc. The causes of kidney yang deficiency are as follows: (1) the body is already weak, either due to disease or paternal genetic factors; (2) prolonged illness depletes yang energy, resulting in kidney yang deficiency; (3) other diseases or diseases of other internal organs involve the kidneys, and any disease developed to a serious stage can cause kidney yang deficiency; (4) excessive sexual intercourse without restraint; (5) old age and physical decline, resulting in kidney yang deficiency; (6) irregular life, staying up late at night, causing kidney yang deficiency. (6) Irregular life, staying up late, being sedentary, often holding urine, excessive smoking and drinking can also lead to kidney yang deficiency. A significant portion of patients with kidney yang deficiency is caused by too much stress, irregular work and rest, should relax, early to bed and early to rise, reasonable work schedule, not overworked, regular exercise, in addition to Chinese medicine conditioning is completely curable, do not have too much pressure. The kidney Yang deficiency is a long-term accumulation of diseases, absolutely not to rush and use a lot of tonic tonic, or indiscriminate use of unknown ingredients to supplement the kidney Yang, to follow medical advice slowly conditioning.