Diabetes is a disease in which blood glucose, or blood sugar, levels are too high. Over time, having too much glucose in the blood can cause serious problems. It can damage the eyes, kidneys, and nerves. Diabetes can also cause heart disease, stroke, and even the need to remove a limb.
People with diabetes need to watch their blood sugar, eat a healthy diet, exercise, and take other steps to ensure that they stay healthy. They may also need to take insulin or other medications. Learn more here about how to care for a person with diabetes.