Usually, back pain, leg weakness and weakness are mostly considered to be the symptoms of kidney deficiency caused by insufficient kidney essence, qi and blood. Kidney deficiency is a common kidney disease, mainly kidney yang deficiency and kidney yin deficiency. Generally, kidney yang deficiency will be manifested as coldness and fear of cold, lumbar and knee pain, mental weakness, etc., while kidney yin deficiency is mostly manifested as lumbar and back pain, lower limb weakness, dryness and heat. It is recommended that patients go to the hospital in time, and can choose to take six flavors of dihuang pill, Zuo Gui Pill, Jin Gui Kidney Qi Pill and other proprietary Chinese medicines under the guidance of the doctor for treatment. In addition, it is necessary to rest more, reduce sexual life, maintain sufficient sleep, avoid overwork. Pay attention to reasonable diet, can eat some kidney tonic food, such as seafood, leek seeds and so on.