Kidney deficiency is caused by a variety of reasons, mainly divided into kidney yin deficiency and kidney yang deficiency. Sweaty hands and feet are not definitively due to kidney deficiency, as weakness of the spleen and stomach can also cause this symptom. If the sweating is very severe, it may be a symptom caused by kidney yin deficiency. Usually, kidney qi runs throughout the body with the blood to nourish the body. If the kidney yin and yang are out of balance, the kidney meridians are blocked and the qi and blood do not run smoothly, then the hands and feet are not nourished by kidney qi and the balance of body fluids in the hands and feet cannot be maintained, so sweating from the hands and feet will occur. When the sweaty hands and feet occur, the first thing to do is to get a doctor’s diagnosis, because Chinese medicine requires evidence-based treatment, and only after determining to look at the specific disease can the right medicine be administered. Even if the kidney yin deficiency has the same symptoms as other patients, the doctor will prescribe different medications according to the patient’s different physique. In daily life, the treatment of kidney deficiency should be assisted by both diet and exercise. The diet should be nutritious, and try to eat a light diet. Exercise should pay attention to do more aerobic exercises, such as eight duanjin, yoga, taijiquan, running, walking, etc.