The main treatment for iron deficiency anemia is iron supplementation through oral and injections. 1. In general, oral iron supplements are preferred, which are safer, such as ferrous sulfate, ferrous protein succinate, ferrous compound acid and other drugs. Most patients will not have a large reaction after oral iron, when some patients due to poor tolerance of certain digestive symptoms, such as nausea, diarrhea, etc., to adjust the amount of oral iron, you can start with a small dose, and then increase to the full dose after a few days. 2. When the patient himself has oral iron intolerance, digestive tract diseases such as ulcerative colitis, atrophic gastritis, and aggravation of the condition after taking oral iron, he can consider injecting iron, such as iron sucrose. The above drugs need to be standardized and rationally used under the guidance of professional physicians and pharmacists.