what is hemogloben
Definition. A low hemoglobin count is a commonly seen blood test result. Hemoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body.In many cases, a low hemoglobin count is only slightly lower than normal and doesn't affect how you feel.efinition. A low hemoglobin count is a commonly seen blood test result. Hemoglobin (Hb or Hgb) is a protein in red blood cells that carries oxygen throughout the body.