Moderate anemia means that the concentration of hemoglobin in peripheral blood is between 60-90g/L. Generally, moderate anemia does not require blood transfusion treatment because moderate anemia is not severe anemia and the effect on the patient is not particularly serious. However, there are special cases, such as normal healthy people due to massive blood loss, the hemoglobin drops rapidly in a short period of time and the body does not develop tolerance, at this time, even if the hemoglobin is higher than 60g/L, which is moderate anemia, the patient often has symptoms of severe ischemia and hypoxia and needs emergency blood transfusion, and emergency blood transfusion is also one of the most important treatment methods to treat the patient. Of course, if a patient with chronic aplastic anemia has a hemoglobin between 60-90g/L, he is moderately anemic and generally does not need blood transfusion therapy. Therefore, whether moderate anemia requires blood transfusion should be analyzed with the specific condition of the patient.