It is wrong to say that people in general have kidney deficiency. Kidney deficiency is mostly caused by overwork, indiscretion in sexual intercourse or loss due to prolonged illness. Kidney deficiency can be clinically divided into kidney yin deficiency, kidney yang deficiency and kidney qi deficiency. Kidney yin deficiency is mostly caused by injury to essence, fluid depletion, or acute febrile illnesses that deplete kidney yin, symptoms include lumbar soreness and fatigue, dizziness and tinnitus, spermatorrhea and premature ejaculation, dry mouth and sore throat, flushing of cheekbones (redness of cheekbones on both sides of the face), five heartburn and heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest heat), or afternoon flashes of heat (a burst of fever), and so on. Kidney yang deficiency is often manifested as dizziness, pale (white and lack of luster) or sallow, cold pain in the waist and knees, fear of cold limbs cold, especially in the lower limbs, depression, loss of libido, impotence and premature ejaculation in men, cold semen, infertility in the uterus in women, or prolonged diarrhea, complete grain not transformed (there is more undigested food in the stools), diarrhea in the five days (diarrhea before dawn), or frequent and clear urine, frequent nocturnal urination, and so on. Kidney qi deficiency is often manifested as slippery semen and premature ejaculation, residual leaking after urination, frequent and clear urination, or even incontinence, lumbar and spinal pain and weakness, hearing loss, shortness of breath, lack of warmth in the limbs, and a less florid complexion. If the above symptoms occur, it is recommended to consult a professional Chinese medicine practitioner in a timely manner under the guidance of diagnosis and treatment, and not blindly use their own medication.