Pre-diabetes is a condition in which blood glucose levels are too high, but not high enough to be diagnosed as diabetes. Pre-diabetes has no signs or symptoms. This makes it challenging to diagnose. It is a risk factor for developing type 2 diabetes and cardiovascular diseases, such as heart disease and stroke. Sixteen out of 100 of adults in Australia have pre-diabetes. Read more in our fact sheet. Understanding pre-diabetes fact sheet Pre-diabetes is a condition in which blood glucose levels are higher than normal, but not high enough to be diagnosed as type 2 diabetes. Download now