What is Diabetes?

Diabetes mellitus, or diabetes, refers to a group of diseases that affect how your body uses blood glucose, commonly called blood sugar. Glucose is vital to your health because it’s an important source of energy for the cells that make up your muscles and tissues. It’s also your brain’s main source of fuel.

Chronic diabetes conditions include type 1 diabetes and type 2 diabetes. Prediabetes is a condition in which your blood sugar levels are higher than normal, but not high enough to be classified as diabetes and may be reversible. Gestational diabetes occurs during pregnancy but may resolve after the baby is delivered.

If you have diabetes, no matter what type, it means you have too much glucose in your blood. Too much glucose can lead to serious health problems.