Hemoglobin (Hb) Test: Low Hb Symptoms, Common Causes, and When to Get Tested
A hemoglobin test measures the level of hemoglobin in your blood—a protein inside red blood cells that carries oxygen throughout your body. Low hemoglobin (low Hb) can point to conditions like iron deficiency, vitamin shortages, or other health concerns. If your doctor suspects anemia or you’re experiencing persistent tiredness, an
March 4, 2026