Kidney yin deficiency is due to the loss of kidney yin, loss of nourishment, deficiency heat, resulting in a series of clinical symptoms, commonly seen in the lumbar and knee weakness, dizziness, tinnitus, loose teeth, hair loss, dryness of the mouth and throat, as well as the five heartburn, fever, hot flashes, night sweating, afternoon zygomatic red, body emaciation, male patients may be spermatorrhea, premature ejaculation, female patients may be less menstruation or amenorrhea. The principle of Chinese medicine treatment is mainly to cultivate its deficiency and strengthen the main body of water to control sunlight. Six-flavored Dihuang Pill is its main representative formula, or you can use Zuo Gui Pill for those with deficiency of Yin, essence and blood, Da Tonic Yin Pill can be used for those with Yin deficiency and internal heat, or you can use acupuncture treatment, take kidney Yu, Guan Yuan, Sanyinjiao and other points, millimetre needles for tonic and diarrhea or flat tonic and diarrhea.