Compare markers
Ferritin vs iron
Iron measures circulating iron; ferritin reflects stored iron — both may appear on iron studies.
General biomarker education — not personalized medical advice. Learn more
Ferritin
Ferritin reflects the body's stored iron and is often ordered alongside other iron studies.
Iron
Serum iron measures the amount of iron currently circulating in the blood.
Why both appear on reports
Iron panels often include ferritin and serum iron together to describe different aspects of iron status.
When to discuss with your clinician
Ask how these markers relate to symptoms you reported and whether follow-up testing is appropriate.