The cause of anemia in young children should first be identified before further treatment can be given. If anemia occurs in young children, the anemia triad can be checked. If ferritin is reduced, it is possible that the anemia is iron deficiency, which is also a common type of anemia in young children. In general, it can be treated by dietary iron supplementation, such as eating foods high in iron, such as lean meat and liver puree. Supplemental foods with high iron content can be given to young children. If the anemia is more severe, oral iron supplements can be given to young children, which can also be helpful. If folic acid or vitamin B12 is lowered, it is possible that megaloblastic anemia is present and the toddler should be given more fresh vegetables and fruits. In addition, vitamin B12 or folic acid supplementation can be used to treat the condition and most can recover quickly. Other rare types of anemia in young children are aplastic anemia and certain hemolytic diseases, which can be identified through relevant tests or bone marrow aspiration, and then treated accordingly after a clear diagnosis. Anemia in young children also requires screening for thalassemia.