Yin and Yang deficiency means that the body has both Yin and Yang deficiency, which is mainly manifested by symptoms such as fear of cold and fear of heat. Yin and Yang deficiency is mainly manifested as fear of cold and fear of heat, emaciation, depression, lack of energy and laziness (lack of strength, do not want to talk), bone steam and hot flashes (a burst of heat, feel that the heat comes from inside the bone to the outside), night sweating (abnormal sweating after going to sleep, waking up sweating stops), diarrhea, loose stools (stools are thin and not shaped), dullness (lack of appetite, less food), spermatorrhea, menorrhagia, and so on. Treatment of Yin-Yang deficiency can be done with Di Huang Drink. Among them, Radix Rehmanniae Praeparata, Cornus Officinalis, Dendrobium, Fructus Schisandrae, Fructus Schisandrae, Ophiopogonis, Ophiopogonis, Ophiopogonis, Cortex Eucommiae, Poria, Poria, Ophiopogonis, Calamus. Therefore, this formula can nourish both yin and yang. If there is any manifestation of deficiency of yin and yang, clinicians should be consulted and medical advice should be followed.