Diabetes is a disease that occurs when your blood glucose, also called blood sugar, is too high. Blood glucose is your main source of energy and comes from the food you eat. Insulin, a hormone made by the pancreas, helps glucose from food get into your cells to be used for energy. Sometimes your body doesn't make enough-or any-insulin or doesn't use insulin well. Glucose then stays in your blood and doesn't reach your cells.
Over time, high blood glucose leads to problems such as
heart disease
stroke
kidney disease
eye problems
dental disease
nerve damage
foot problems