Diabetes is a health problem that affects how your body uses food for energy. Normally, your body uses sugar, or glucose, from food for energy. With diabetes, your body either can't use the sugar from your food, or it doesn't make enough sugar.
When you eat, your body turns food into sugar, and sends it into your blood. To help move the sugar into your cells, where it can be used for energy, your body makes a special hormone called insulin. In people with diabetes, either their body doesn't make enough insulin, or it can't use the insulin it does make. So, the sugar can't get into their cells, and it builds up in their blood.
This extra sugar in the blood can damage your body over time. It can give you stomachaches, make you thirsty, and make you pee a lot. To help control your diabetes, you will need to eat healthy foods, do physical activity, and maybe even take medicine.