Iron deficiency anemia is mainly based on iron supplementation. After taking iron supplements, you can add vitamin C, which can promote the absorption of iron. The first effective performance of oral iron is the increase of reticulocytes in peripheral blood, the peak is 5-10 days after starting to take the drug, and the hemoglobin concentration rises after two weeks, generally about 2 months can return to normal, iron treatment should continue for at least 4-6 months after the hemoglobin returns to normal, and the drug can be stopped only after the hemoglobin is normal, so it must be treated regularly for nearly half a year, individual patients may eat Individual patients may stop taking the drug immediately after the hemoglobin rises, because the body is still in the state of iron deficiency, so there may be repeated iron deficiency anemia, which is caused by irregular treatment without taking the drug on time.