Main content

    Health Information

    Hemoglobin

    Hemoglobin

    Hemoglobin is the protein in red blood cells that carries oxygen from the lungs to the rest of the body. It also helps carry carbon dioxide back to the lungs, where it can be breathed out of the body.

    Abnormally low levels of hemoglobin result in anemia.

    Last Revised: August 6, 2012

    Author: Healthwise Staff

    Medical Review: E. Gregory Thompson, MD - Internal Medicine & Joseph O'Donnell, MD - Hematology, Oncology

    This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

    1995-2014 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.