Yin deficiency and internal heat refers to the deficiency of yin in the body and the manifestation of a school of symptoms with deficiency heat as the main phenomenon, which commonly include irritable heat in the five hearts, hot flashes and night sweats, dry mouth and dry throat. Men tend to show yang strength and spermatorrhea, while women tend to show menstrual disorders and low menstrual flow. The physique of Yin deficiency and internal heat is dominated by deficiency heat, so when treating it, you should not use drugs to clear heat and detoxify the body, but nourish Yin and clear heat. You can eat foods that nourish Yin, such as dendrobium, yucca, lily of the valley, silver fungus and so on. You can also choose to use Yin nourishing Chinese medicine such as Liu Wei Di Huang Wan, Da Yin Wan, Zuo Gui Wan and so on.