There is no so-called best way to identify Liver and Kidney Yin deficiency, and it usually requires the doctor to make a comprehensive judgment after observing and inquiring. Yin deficiency of the liver and kidneys manifests itself in dizziness, insomnia and dreaming, hidden pain in the abdomen and ribs, irritability, dry mouth and throat, red cheekbones, night sweating (sweating abnormally after going to sleep, but stopping after waking up), heat in the heart (heat in the heart of the hands and the heart of the feet, and self-consciousness of heat in the heart and chest), spermatorrhea, menstrual discharge, red tongue with little moss, and a fine pulse (the pulse is becoming narrower and finer, and the rate is accelerating), etc. The symptoms of Yin deficiency are usually caused by prolonged illness, emotional and internal injuries, sexual relations, warm-heat illness, and so on. Yin deficiency of the liver and kidney is mostly caused by prolonged illness, internal injury of emotions, uncontrolled sexual intercourse, and injury to the liver and kidney in the late stage of warm and hot diseases. Doctors need to combine the cause of the disease, clinical manifestations and other aspects to determine the patient’s pattern, so as to give a reasonable treatment plan. If you are not feeling well, you should go to the hospital in time and receive standardized treatment under the guidance of a professional doctor to avoid delaying your condition.