What is pre-diabetes? Could I have it and not know?
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Before people develop type 2 diabetes, they almost always have "pre-diabetes". This means blood sugar levels are higher than normal but not yet high enough to be diagnosed as diabetes.

Recent research has shown that some long-term damage to the body, especially the heart and circulatory system, may already be occurring during pre-diabetes. Perhaps more importantly it has been shown that appropriate intervention at the pre-diabetes stage can prevent diabetes developing.

It is not possible to know whether you have pre-diabetes without having a blood test. If you:

- have a strong family history of diabetes,

- are overweight or obese, and/or

- don't do much physical activity

then you may be at risk and should probably be checked. Your risk increases with age, but with the growing rates of obesity it is even being seen in adolescence and children.