There are many causes of anemia, and different medications should be given according to different causes. The following causes are common: 1. Nutritional iron deficiency anemia, which is the most common type of anemia during childhood development. It is mostly caused by improper or late addition of complementary foods, and can be treated with oral iron dextran oral solution, ferrous sulfate tablets or pediatric blood granules, etc., as well as reasonable and scientific supplementation of complementary foods, which will gradually improve. 2. for professional consultation and treatment. Therefore, before applying blood supplements, it is best to go to the hospital to have a peripheral blood smear to simply clarify the type of anemia.