Blood deficiency should be correctly called Qi and blood deficiency, which includes Qi deficiency and blood deficiency. Qi and blood are two important components of the body, the material basis for maintaining the normal function of the body, the two interact with each other, nourishing each other, Qi can push the blood to run, blood can carry Qi. Chinese medicine says: “qi is the handsome of blood, blood is the mother of qi,” so qi and blood are interdependent. The causes of Qi and Blood deficiency include: 1. congenital factors: congenital factors are closely related to the parents, and the parents’ congenital essence does not produce enough Qi and Blood; 2. acquired factors: the spleen and stomach transport function decreases, and the water and grain essence does not produce enough Qi and Blood. In addition, there are also factors including blood loss from surgery, damage to the righteousness, poor living habits, fatigue, and environmental pollution that can affect the body’s qi and blood production. The common symptoms of Qi-Blood deficiency are yellowish face without luster, shortness of breath, dizziness, fatigue, aggravated after labor or activity, panic and forgetfulness, cold hands and feet. In short, Qi and blood deficiency is mainly caused by poor nutrition, poor digestion of the spleen and stomach, excessive blood loss, and overwork.