Anemia with a hemoglobin of 63 g/L usually does not require a blood transfusion, but blood transfusion is needed when anemia is caused by acute hemorrhage or when there are obvious symptoms of hypoxia.
Indications for the need for blood transfusion include: anemia due to acute hemorrhage that requires blood transfusion as soon as possible to replenish blood volume. Chronic anemia with hypoxia due to excessive red blood cell destruction, loss and impaired production is also an indication for blood transfusion if the hemoglobin concentration is <60g/L or hematocrit is <0.20.
Anemia can be divided into severity according to the amount of hemoglobin, less than 30g/L is extremely severe anemia; 30~60g/L is severe anemia; 60~90g/L is moderate anemia; more than 90g/L, below normal is mild. Hemoglobin 63g/L is moderate anemia.
Clinical symptoms are usually not obvious, and in the case of iron-deficiency anemia and megaloblastic anemia, the anemia usually improves with 1 to 2 weeks of treatment, and blood transfusion is usually not needed. Medications include ferrous succinate, vitamin B12, and folic acid.
When hemoglobin is low, the cause should be further identified and standardized treatment should be carried out under the guidance of a doctor.