What Is a Normal Hemoglobin Count?

A low hemoglobin count is an indication of anemic conditions such as thalassemia, hypothyroidism, iron deficiency, folate deficiency, bleeding and bone marrow cancers, notes Mayo Clinic. A high hemoglobin count can be as a result of dehydration, heavy smoking, burns, extreme physical exercise or living at a high altitude. It can also be an indication of disorders such as lung disease or polycythemia vera.