In addition to western medicine, the kidney of Chinese medicine does not refer to kidney deficiency, because kidney essence is insufficient, and kidney yin deficiency and kidney yang deficiency are common. The symptoms of kidney-yang deficiency are backache, cold limbs, decreased sexual function and even edema. Kidney yin deficiency is manifested as backache, dryness and heat, night sweats, sweating easily, dizziness, tinnitus and so on. The symptoms of kidney disease will vary according to the patient's primary disease and degree of progress. In the early stage of renal disease, when the renal function is still normal, it is often manifested as eyelid edema, edema of both lower limbs, hematuria and increased foam in urine. When renal insufficiency or even renal failure, in addition to the above symptoms, patients will also show fatigue, nausea, vomiting, loss of appetite, less urine, itching all over the body, bone pain and so on.