Liver depression and yin deficiency is a Chinese medicine term that can be divided into two concepts: liver depression and qi stagnation and liver yin deficiency. The manifestation of liver depression and qi stagnation can be seen in the form of boredom, depression, chest tightness, sighing and sighing, and after sighing, the feeling of chest tightness will improve and appetite will be significantly reduced. Symptoms of Liver-Yin deficiency can be seen as easy dizziness, unclear vision, significant loss of vision, sometimes a vague pain in the rib cage on both sides, heat in the palms of the hands and feet, flushed face, and often thirst, and easy sweating at night when sleeping, also known as night sweats. Liver depression and yin deficiency are clinically interchangeable, that is, liver depression and qi stagnation can lead to liver yin deficiency, while liver yin deficiency can also appear as symptoms of liver depression and qi stagnation.