What is polyuria?

Patty Bonsignore


“Poly” in Greek means more than usual or excessive and “uria” refers to a constituent of urine. So “polyuria” is an increase in urination. This increase can occur in one with diabetes when blood glucose levels are over 180 mg/dL. The body tries to lower blood glucose levels by excreting the glucose through the urine. Polyuria is a common symptom experienced by many when they are first diagnosed with diabetes or when blood glucose levels are running higher than usual. It is often accompanied by polydipsia, which is increased thirst. The increased thirst develops because the body is getting rid of too much fluid through the urine -- so polyuria and polydipsia are two symptoms that usually come together. The best way to avoid polyuria is to keep blood glucose levels less than 180 mg/dL. Another reason for increased urination is a bladder infection. If your blood glucose levels are within target range and you are still having increased urinary frequency, it is best to see your doctor to determine the cause.