The general clinical manifestations of yin deficiency are: dry mouth and dry throat, emaciation, five heart upset heat, hot flushes and night sweats, waist and knee soreness, spermatorrhea and other uncomfortable symptoms. The main treatment is to nourish yin and kidney. A series of symptoms occur due to insufficient yin fluid and inability to nourish the body. Avoid staying up late, do not sweat too much, and pay attention to supplement water. At ordinary times, you should eat more cold foods, such as winter melon, tremella, medlar, lily, lotus seed, polygonatum odoratum, polygonatum, mulberry, ophiopogon japonicum and other yin nourishing and fluid tonifying foods or traditional Chinese medicine soup. Patients can selectively recuperate according to their actual conditions.