The usual color of urine is straw-yellow. Abnormally colored urine may be cloudy, dark, or blood-colored.
Abnormal urine color may be caused by infection, disease, medicines, or food you eat.
Cloudy or milky urine is a sign of a urinary tract infection, which may also cause a bad smell. Milky urine may also be caused by bacteria, crystals, fat, white or red blood cells, or mucus in the urine.
Pink, red, or lighter brown urine can be caused by:
Dark yellow or orange urine can be caused by:
Green or blue urine is due to:
See your health care provider if you have:
The health care provider will perform a physical exam. This may include a rectal or pelvic exam. The doctor will ask you questions about your symptoms such as:
Tests that may be done include:
Discoloration of urine
Gerber GS, Brendler CB. Evaluation of the urologic patient: History, physical examination, and the urinalysis In: Wein AJ, ed. Campbell-Walsh Urology. 10th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 3.
Landry DW, Bazari H. Approach to the patient with renal disease. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 116.
Updated by: Louis S. Liou, MD, PhD, Chief of Urology, Cambridge Health Alliance, Visiting Assistant Professor of Surgery, Harvard Medical School. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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