The symptoms of kidney yin deficiency are as follows: 1. general symptoms, such as dizziness and tinnitus, soreness and weakness of the waist and knees, insomnia and dreaminess, etc. 2. male sexual function, for example, men may have yin deficiency that leads to delusions of the phase fire, yang strength and easy to raise, that is, men’s penis is easily erected in the morning, but impotence and premature ejaculation may occur during real sex. 3. men may have seminal emission, women may have reduced menstruation, etc. 4. Women may suffer from menstrual cramps and other related disorders. 4. Women may suffer from avalanche and may also suffer from physical weakness such as hot flashes and night sweats. 5. Patients may lose weight, dislike eating, and have more fire and like to get angry.