There are yin and yang in the kidney, and there are many deficiencies in the kidney, the common ones are kidney yang deficiency and kidney yin deficiency. The kidney has the functions of collecting sperm, main reproductive development and metabolism of water. Kidney Yang deficiency mainly refers to the deficiency of kidney Yang, the body can not get the corresponding warmth and Qi, and a series of pathological manifestations. The main symptoms are: fear of cold, especially below the waist and knees are both sore and cold, the limbs are not warm, the libido is reduced, men are mostly impotent and premature ejaculation, easy spermatorrhea, women are mostly infertile with a cold uterus. The face is white or burnt black, without luster. Mental depression, weakness, easy sleepiness, small amount of urine during the day, clear color, and increased nocturia, 3-4 times a night, increased frequency of stools, prolonged diarrhea, or containing undigested food, abdominal pain with bowel movement at dawn every day, pain decreases after stooling. The tongue is dull, fatty with white coating. Kidney yin deficiency mainly refers to a series of pathological manifestations resulting from loss of kidney yin, loss of moistening of the organism and internal disturbance by deficiency fire. Symptoms include soreness and weakness of the waist and knees, dizziness and tinnitus, mental fatigue, loose teeth, severe hair loss, spermatorrhea and premature ejaculation in men, prolonged menstruation or reduced menstrual flow or even amenorrhea in women. It is easy to insomnia, dreamy, forgetful, dry mouth and throat, like to drink water, especially cold water. The body is usually thin, the two cheeks are often red, the heart is troubled, night sweating, the volume of urine is small, yellow, the frequency of stool is reduced, dry, the tongue is red, the tongue is dry with little fluid or little moss. These are the symptoms of kidney yin deficiency and kidney yang deficiency. Patients are advised to seek medical consultation early and make reasonable adjustments in order to achieve a balanced state of yin and yang.