Hb and HbA1C are two parameters that are frequently used when going to the doctor for medical examination and treatment. The Hb index helps assess the presence or absence of anemia and if there is anemia, at what level. The HbA1C index reflects the average blood sugar (glucose) concentration over the previous 2-3 months, used to diagnose diabetes in non-pregnant people and monitor blood sugar control in diabetic patients.

High blood sugar (hyperglycemia) affects people with diabetes. Several factors can contribute to high blood sugar in people with diabetes, including food and physical activity choices, illness, diabetes medications, or skipping or not taking enough of blood sugar-lowering medications.