This disease makes it hard for your body to use blood glucose (also called "blood sugar"). That's what your cells use for energy. With diabetes, blood glucose builds up in your bloodstream. This leads to serious health problems.

This form of diabetes develops during pregnancy. With it, the hormone insulin has problems helping the body turn blood glucose (commonly called blood sugar) into energy. In most cases, gestational diabetes can be controlled with no complications. It often goes away after pregnancy.

This disease, once called "juvenile diabetes," is a problem with the way your body converts food to energy. It happens when your immune system attacks and destroys islet cells in the pancreas. These cells produce insulin, a hormone used to process blood glucose.

This is the most common form of diabetes. With it, your body has trouble making and using insulin. That's the hormone that helps glucose enter your cells to produce energy.

This term is used to describe foot problems that stem from diabetes. These problems can be difficult to treat.

This condition, a complication of diabetes, is a buildup of toxins in the blood. It is a medical emergency that can be life-threatening.

When body tissue dies, we call it "gangrene." You might be able to see it, like on the skin of a hand or foot. But gangrene may also happen within your body. It can happen to a muscle, organ or another part of your body you can't see.

If you have diabetes, you need to watch for hyperglycemia. It's a dangerous condition that happens when your blood sugar is too high. If not managed well, it can cause serious complications. And when it becomes severe, it is life-threatening.

If you have diabetes, you need to watch for hypoglycemia. It's a dangerous condition that happens when your blood sugar is too low. It is life-threatening.

People with prediabetes have higher-than-normal blood glucose levels that aren't high enough to be called diabetes. Prediabetes is a common health condition, especially among overweight adults. Unfortunately, most people who have prediabetes are not aware they have the condition.