Glucose in Urine Test Test

A glucose in urine test measures the amount of sugar (glucose) in your urine. Normally, there is little to no glucose in urine. High levels may indicate diabetes or a rare kidney disorder, but this test alone cannot diagnose any condition.

What this test measures

A glucose in urine test measures the amount of glucose in your urine. Glucose is a type of sugar that comes from the food you eat and is your body's main source of energy.

What your results mean

Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.

Higher-than-normal results

If your test result shows too much glucose in your urine, it may be a sign of diabetes (or poor diabetes control if already diagnosed), pregnancy, gestational diabetes, or an uncommon type of kidney disorder.

Frequently asked questions

What is a glucose in urine test?

It measures the amount of glucose (sugar) in your urine. Glucose is your body's main energy source.

Why is this test done?

It may be used to screen for or monitor diabetes, especially if blood testing is difficult. It is often part of a urinalysis.

What does a high result mean?

High urine glucose may indicate diabetes, pregnancy, gestational diabetes, or a rare kidney disorder. But this test alone cannot diagnose any condition.

Can a normal result rule out diabetes?

No. You can have a normal urine glucose level even when your blood glucose is high.

What can affect my test results?

Certain medicines, vitamin C, and eating a large meal may affect your results. Ask your provider what your results mean.

Sources

MedlinePlus: Glucose in Urine Test — NIH MedlinePlus

Last updated July 7, 2026. Information is aggregated from official public sources and is not a substitute for professional medical care.