Kidney deficiency is a syndrome of traditional Chinese medicine, which refers to deficiency of kidney essence and deficiency of both yin and yang. Kidney deficiency is a comprehensive concept of mental fatigue, dizziness, tinnitus, amnesia, alopecia, backache, nocturnal emission, impotence, male infertility, female infertility, menopausal syndrome and other diseases. There are many types of kidney yin deficiency, kidney yang deficiency and kidney qi deficiency. The so-called kidney deficiency and kidney deficiency in the manifestations of kidney deficiency diseases cover the qi and blood circulation of kidney and kidney meridian, or organs and tissues whose functions are related to kidney, such as related urinary and reproductive systems. Some concepts are different from those of kidney in western medicine anatomy. Modern science has proved that when people have kidney deficiency, it will lead to the decline of their immune ability. I recommend going to Jishitang to see an old Chinese doctor.