https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5986027/

One should always consider iron deficiency (without anemia) as the cause of ... symptoms of iron deficiency anemia 1, 2, 3 primarily together with low ferritin ...

https://universityhealthnews.com/daily/energy/iron-deficient-but-not-anemic-a-simple-cause-of-chronic-fatigue-symptoms-with-a-simple-solution/

Apr 3, 2019 ... Being iron deficient is a cause of chronic fatigue symptoms, but it doesn't ... and Swiss researchers decided to check low ferritin symptoms.

https://www.urmc.rochester.edu/encyclopedia/content.aspx?contenttypeid=167&contentid=ferritin_blood

Low levels of ferritin lead to iron-deficiency anemia. ... problems, and nonsteroidal anti-inflammatory medicines can cause blood loss in your digestive tract.

https://www.healthline.com/health/ferritin

A ferritin blood test isn't associated with serious side effects because it requires obtaining a small sample of blood. Talk to your ...

https://www.webmd.com/a-to-z-guides/ferritin-blood-test

Jan 10, 2017 ... A ferritin blood test shows how much iron is stored in your body. ... If left unchecked, low levels of iron can cause heart failure (when your heart ...

https://www.medicalnewstoday.com/articles/323713.php

Nov 15, 2018 ... A ferritin blood test is a simple way to check a person's iron levels. ... Low ferritin levels can cause headaches and pale skin. A result of low ...

http://www.irondisorders.org/iron-deficiency

Feb 26, 2011 ... But low ferritin and normal hemoglobin doesn't match with anything. ... The only side effects that I have experienced are swelling in the feet, ...

https://labtestsonline.org/tests/ferritin

Mar 28, 2018 ... The ferritin test measures the ferritin level in the blood primarily to help ... in organs and may eventually cause their dysfunction and failure.

http://www.irondisorders.org/iron-deficiency-anemia

Lower IQs have been linked to iron deficiency occurring during critical periods of growth. ... some dietary supplements or substances that cause bleeding such as pain ... a person has both low hemoglobin and hematocrit and low serum ferritin.

https://www.mayoclinic.org/tests-procedures/ferritin-test/about/pac-20384928

Feb 10, 2017 ... If a ferritin test reveals that your blood ferritin level is lower than ... Some types of cancer also may cause your blood ferritin level to be high.