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Causes of Dark Brown or Black Urine

Specialty:

Nephrology, Urology, Obstetrics & Gynecology, Pedatrics, Genetics
Clinical Laboratory

Objective:

ICD-10:

Description:

Urine may appear dark brown or black if certain compounds are present. Sometimes the darkening occurs only after the urine has stood for several hours under conditions favoring oxidation (sunlight, air).

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