Liver and kidney yin deficiency can be clinically divided into liver yin deficiency, kidney yin deficiency and liver and kidney deficiency, with certain differences in symptomatology. 1. Liver yin deficiency: Mostly due to the deficiency of yin in the body, liver loss of moistening, internal disturbance of deficiency heat, dizziness, dry eyes, loss of vision, or vague burning pain in the ribs, facial flushing and fever, as well as dryness of the mouth and throat, heat in the heart of the hands and feet The symptoms include dryness of the mouth and throat, heat in the heart of the hands and feet, night sweats, and boredom in the heart and chest, etc. Physical examination also shows symptoms such as red tongue with little coating and dry tongue. The treatment can be carried out with Qiju Dihuang Wan and Liu Wei Dihuang Wan. 2. Kidney Yin deficiency: Soreness and weakness of the waist and knees, accompanied by back pain, dizziness, tinnitus, loose teeth, hair loss and other symptoms. Men may also have seminal emission, premature ejaculation, dream emission, and abnormal penile erection with pain and other symptoms; women can see low menstrual flow, or even amenorrhea, or leakage, accompanied by insomnia, forgetfulness, dryness of the mouth and throat, physical wasting, heat in the heart of the hands and feet, chest boredom, hot flashes and night sweats, as well as the afternoon two cheekbones red, urine short yellow and other symptoms, physical examination can be seen on the tongue red less moss, or even no moss, can use Zhi Bai Di Huang Wan, Zuo Gui Wan for treatment 3, liver and kidney deficiency: some patients will have liver and kidney deficiency, mostly seen in lumbago, blood deficiency, dizziness, premenstruation, amenorrhea, dysmenorrhea and other diseases. Clinical treatment is based on nourishing Yin and replenishing blood, strengthening the root and supporting the righteousness, and can be treated with Wu Zi Yan Zong Wan, Qilin Wan and other drugs under the guidance of a doctor.