Glycosuria

Overview
Glycosuria or glucosuria is an abnormal condition of osmotic diuresis due to excretion of glucose by the kidneys.

The most common cause of glycosuria is untreated diabetes mellitus. This disease raises plasma glucose levels far above normal, and beyond a certain threshold, the excess glucose is excreted by the kidneys, taking water with it and producing diuresis. The threshold varies somewhat from one individual to another.

If the renal threshold for glycosuria is so low that even normal blood glucose levels produce the condition, it is referred to as renal glycosuria.