Nourishing blood drugs, also called blood tonic drugs, refer to drugs mainly used to treat blood deficiency. Heart governs blood, liver stores blood, and spleen governs blood, which is the source of qi and blood biochemistry. So blood deficiency is closely related to heart, liver and spleen. The main manifestations of blood deficiency are: dull or sallow complexion, pale labial nail, dizziness and palpitation and insomnia, numbness of hands and feet, pale tongue and thready pulse. Women still have a small amount of light color and even amenorrhea in the later period of menstruation.