Diabetes is a condition in which the body either does not produce insulin or does not use it properly. Learn about symptoms and treatment.
Type 2 diabetes is a chronic disease in which the body is unable to properly make use of insulin, leading to high blood glucose levels.
Type 1 diabetes is a chronic disease in which the body makes little to no insulin, resulting in high blood glucose levels.
A hemoglobin A1C test is a blood test that measures a person's average blood glucose level over the previous three months.