Ferritin is a protein which helps store iron in the body. It is present in iron-storing cells of all living organisms, including microscopic organisms. Blood ferritin levels are measured to evaluate a person's iron stores. If your doctor suspects 'too much of iron in the body' or 'iron deficiency' then he/she may order a ferritin test. When the protein 'ferritin' gets bound to iron, then only the body is able to store iron for future use. Iron plays an important role in healthy blood composition. Low ferritin can lead to iron deficiency anemia....