What is diabetes? Diabetes is a condition that happens when your blood sugar (glucose) is too high. It develops when your pancreas doesn’t make enough insulin or any at all, or when your body isn’t responding to the effects of insulin properly. Diabetes affects people of all ages.
Diabetes mellitus refers to a group of diseases that affect how the body uses blood sugar (glucose). Glucose is an important source of energy for the cells that make up the muscles and tissues. It's also the brain's main source of fuel. The main cause of diabetes varies by type.
Diabetes is a chronic health condition in which your blood glucose levels are too high. There is no cure, but diet, exercise, medications, and weight control can help.
Learn about type 1, type 2, and gestational diabetes symptoms, causes, diagnosis, treatment, diet, management, and diabetes prevention.