Diabetes is an incurable disease that occurs when the body fails to properly use sugar (glucose), which is a "fuel" essential to its functioning. Glucose, poorly absorbed by the cells, then accumulates in the blood and is then poured into the urine. This abnormally high concentration of glucose in the blood is called hyperglycemia. In the long run, it can cause complications in the eyes, kidneys, heart and blood vessels.
Diabetes can be caused by a partial or total incapacity of the pancreas to make insulin, which is a hormone essential for the absorption of glucose by the cells. It can also come from an inability of the cells themselves to use insulin to absorb glucose. In both cases, the cells being deprived of their main source of energy, it necessarily follows important physiological consequences, such as an extreme fatigue or problems of cicatrization for example.to know more between here ...