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Diabetes is a chronic disease characterized by high blood glucose levels that occurs when the body cannot produce or use insulin properly.

Insulin is a hormone produced by the pancreas (an organ that lies near the stomach) that helps to convert sugar, starches and other food into energy needed for daily life.

What goes wrong in diabetes?

When a person has diabetes, the glucose does not get absorbed well due to lack or deficiency of insulin. As a result, excess amount of glucose stays circulating in the blood. This leads to high blood glucose levels (hyperglycemia).

This in turn, causes damage to the body tissues over time. Eventually, leading to various health complications.

Blood Glucose Levels


Prediabetes is a condition where the blood glucose levels are higher than normal but not high enough to be diagnosed as diabetes.

People usually have "prediabetes" before they develop type 2 diabetes. It is also referred to as "impaired glucose tolerance" (IGT) or "impaired fasting glucose" (IFG) by doctors, depending on what test was used when it was detected.

Having prediabetes also puts you at a higher risk for developing type 2 diabetes and cardiovascular disease.

If your test results are normal, you should be retested in 3 years. If you have prediabetes, ask your doctor if you should be tested again in 1 year.