The term triple anemia generally refers to the levels of ferritin, folic acid, and vitamin B12. The triple test for anemia is very important for the diagnosis of the cause of anemia in patients. If a patient has reduced hemoglobin and there is anemia, an anemia triple test is needed. If ferritin is decreased, there is a possibility of iron deficiency anemia, which needs to be treated with iron supplements. In addition, the cause of iron deficiency should be actively searched for so that iron deficiency anemia will not recur after the cause is removed. If folic acid or vitamin B12 is deficient, it may be megaloblastic anemia and needs to be treated with folic acid or vitamin B12 supplementation. However, if all three indicators of anemia are normal or elevated, it is possible that the anemia is caused by aplastic anemia or chronic disease anemia, etc. A bone marrow aspiration test is needed to determine the cause of the anemia and then give treatment.