Iron-deficiency anemia is anemia that happens when there isn't enough iron in the body.
Someone with anemia has a lower number of red blood cells (RBCs) than usual. RBCs contain hemoglobin, a protein that carries oxygen throughout the body. The body needs iron to make hemoglobin (HEE-muh-glow-bin). Without enough iron, less hemoglobin and fewer red blood cells are made, leading to anemia.
Treatment with iron supplements usually makes the anemia better.
What Are the Signs & Symptoms of Iron-Deficiency Anemia?
At first, children with iron-deficiency anemia may not have any symptoms. When symptoms do happen, a child might: