DefinitionBy Mayo Clinic staff
Normal urine color ranges from pale yellow to deep amber — the result of a pigment called urochrome and how diluted or concentrated the urine is.
Pigments and other compounds in certain foods and medications may change your urine color. Beets, berries and fava beans are among the foods most likely to affect urine color. Many over-the-counter and prescription medications give urine more-vivid tones — raspberry red, lemon yellow and orange orange.
An unusual urine color is among the most common signs of a urinary tract infection. Deep purple urine is an identifying characteristic of porphyria, a rare, inherited disorder of red blood cells.
- Gerber GS, et al. Evaluation of the urologic patient: History, physical examination, and urinalysis. In: Wein AJ, et al. Campbell-Walsh Urology. 9th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/208746819-6/0/1445/0.html. Accessed June 21, 2011.
- Ferri FF. Ferri's Differential Diagnosis: A practical guide to the differential diagnosis of symptoms, signs and clinical disorders. 2nd ed. Philadelphia, Pa.: Mosby Elsevier; 2011:82.
- Post TW, et al. Urinalysis in the diagnosis of renal disease. http://www.uptodate.com/home/index.html. Accessed June 22, 2011.
- McPherson RA, et al. Components of basic (routine) urinalysis. In: McPherson RA, et al. Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. Philadelphia. Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/208746819-6/0/1393/0.html. Accessed June 22, 2011.
- Foot CL, et al. Uroscopic rainbow: Modern matula medicine. Postgraduate Medical Journal. 2006;82:126.
- Hooton TM. Acute cystitis in women. http://www.uptodate.com/home/index.html. Accessed June 28, 2011.
- Castle EP (expert opinion). Mayo Clinic, Rochester, Minn. July 5, 2011.