Discover what a ferritin blood test is and what your levels can tell you about your health. Plus, key warning signs of low ferritin, high ferritin, and what your ferritin test results mean.

Low iron levels, or iron deficiency, may cause a variety of symptoms or signs, such as fatigue, paleness, headache, dizziness ...

Ferritin is a protein that stores iron for your body. Iron is a mineral needed to make hemoglobin—a protein in red blood cells that carries oxygen-rich blood from your lungs to the rest of your ...