Diabetes is a disease in which your body is unable to properly use and store glucose, a type of sugar. The glucose backs up in the bloodstream, resulting in blood glucose ('sugar') to increase.

What Causes Diabetes?

All  types of diabetes causes people to have too much glucose in their blood.
Glucose is very important to our body as it provides us our energy.
We get glucose when our body breaks down the carbohydrates we consume in our diet.
That glucose is released to our blood stream.

We also need a hormone that is called Insulin that is made by our pancreas.
It is the hormone that allows the glucose in our blood to enter our cells and fuel our body.

Photo Credit: International Diabetes Federation

If you don't have diabetes, your pancreas can sense that glucose has entered the bloodstream and releases the correct amount of insulin so the glucose can enter the body cells.

But if you have diabetes, this  system does not  work properly, or does not work at all.