Iron deficiency anemia is a common type of anemia in children. The main reason for this is that children grow and develop rapidly and have a high demand for iron, so if iron-rich foods are not added in time, iron deficiency anemia may occur. If the child is partial to food and does not take care to add iron-rich foods to his/her diet, it is possible that the intake will be reduced. In addition, if children have intestinal parasites, intestinal polyps, etc., which can lead to long-term chronic blood loss, can also lead to iron loss. Therefore, the most common type of anemia in children is iron-deficiency anemia, which requires timely supplementation of iron supplements and eating foods high in iron.