Yin deficiency can be divided into lung yin deficiency, kidney yin deficiency, etc. Different types can be used in different Chinese medicines, commonly including tian dong, dihuang, yam, etc.. 1. Lung yin deficiency: At present, the commonly used clinical Chinese medicines to supplement lung yin deficiency mainly include dian dong, lily of the valley, Sang Bai Pi, Sichuan pei, mint, maitake, schizandra, Zhi Mu and other medicines, which have the effect of nourishing the lung yin. 2. Kidney yin deficiency: at present the clinic commonly used to supplement the kidney yin deficiency of Chinese medicine are raw rhubarb, dandelion, wolfberry, chasteberry, cornelian cherry, cornelian cherry, bone skin, etc., has the effect of nourishing the kidney yin. It should be noted that the above mentioned Chinese medicine needs to be reasonably used by a professional Chinese medicine practitioner after identification, and should not be taken at random.