Urine Bilirubin
This test checks for bilirubin in your urine, a yellow-orange pigment made when the body breaks down old red blood cells. It's normally processed by the liver and cleared through the stool, not the urine.
Because healthy urine contains essentially no bilirubin, its presence can be an early clue about how the liver and bile ducts are working. It sometimes shows up before jaundice becomes visible, giving an early window into liver-related processes. Paired with related tests, it helps your clinician understand where a problem in bilirubin handling might lie.
A positive result means bilirubin is present, which can reflect the liver or bile ducts not clearing it normally. This finding usually prompts a clinician to look at liver function and related blood tests to understand the cause.
A negative result means no bilirubin was detected, the normal and reassuring finding.
Negative is the expected result. A positive finding is interpreted by a clinician alongside urobilinogen and liver blood tests rather than on its own.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.