Iron deficiency anemia is mainly based on iron supplementation, and vitamin C can be added after taking iron supplements, which can promote iron absorption. Oral iron effective performance is first peripheral blood reticulocytes increase, the peak in the beginning of the drug 5-10 days, two weeks after the rise in hemoglobin concentration, generally about 2 months to return to normal, iron treatment should be in the hemoglobin back to normal at least 4-6 months, to be normal ferritin can only be discontinued after the drug, so be sure to formal treatment for nearly half a year, individual patients may be eating After the hemoglobin rises, the drug is immediately given to stop, this time because the body is still in the state of iron deficiency, so there may be repeated iron deficiency anemia, all because of treatment irregularities caused by not taking the drug on time.