The main difference between liver and kidney yin deficiency (deficiency of yin fluid in the liver and kidneys) and yang deficiency lies in the hot and cold attributes of the symptoms, with cold in the deficiency being yang deficiency and heat in the deficiency being yin deficiency. Yin deficiency of the liver and kidney refers to the deficiency of yin fluid in the liver and kidney organs, resulting in yang qi bias manifested by deficiency and heat symptoms, clinical symptoms such as dizziness, dizziness, tinnitus, forgetfulness, insomnia, dreaminess, dry throat, dryness of the mouth, lumbar and knee soreness and tenderness (lumbar and knee soreness and weakness), dystocia (pain in the area of the ribs and the abdomen), and heartburn and fever (heat in the hearts of the hands and the feet and self-awareness of heart and chest irritation and heat), and so on. Kidney yang deficiency refers to the deficiency of yang energy in the kidneys, resulting in the prevalence of yin energy, the clinical manifestations of which are characterized by the fear of cold, such as lumbar and knee soreness (feeling of soreness and weakness in the lumbar and knee areas), fear of cold limbs (fear of cold, cold limbs), depression, impotence, infertility of the uterus in women, or prolonged leakage of feces, and the completion of the grain does not dissolve (there is a large amount of undigested food in the stools), etc. If you have any of these symptoms, you need to consult a physician promptly. If you experience any of these symptoms, you should consult a doctor in time to avoid any delay in your condition.