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Bilirubin in Urine Test

This test checks for bilirubin in your urine. Normally, bilirubin is not found in urine. If it is present, it may be an early sign of a liver condition.

What this test measures

A bilirubin in urine test measures the levels of bilirubin in your urine. Bilirubin is a yellow substance made when red blood cells break down. Your liver uses bilirubin to make bile, which helps digest food. A healthy liver removes most bilirubin from your body. If there is a problem with your liver or bile ducts, bilirubin can build up in your blood and get into your urine.

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 bilirubin is found in your urine, it may be a sign that you have a liver disease, such as hepatitis or cirrhosis, or a blockage in your bile ducts.

Frequently asked questions

What is bilirubin?

Bilirubin is a yellow substance your body makes during the normal process of breaking down red blood cells.

Why is this test done?

This test is often part of a urinalysis, which is used to check your general health and help diagnose liver problems and other medical conditions.

What does it mean if bilirubin is found in my urine?

If bilirubin is found in your urine, it may be an early sign of a liver condition, such as hepatitis or cirrhosis, or a blockage in your bile ducts.

Is this test the same as a urinalysis?

A bilirubin in urine test is often part of a urinalysis, which may include a visual check, tests for certain chemicals, and an examination under a microscope.

What should I do if my test shows bilirubin in urine?

To learn what your results mean, talk with your provider.

Related lab tests

Sources

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