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Urine odor

 

Urine odor refers to the smell of your urine. Urine odor varies. Most of the time, urine does not have a strong smell if you are healthy and drink plenty of fluids.

Most changes in urine odor are not a sign of disease and go away in time. Some foods and medicines, including vitamins, may affect your urine's odor. For example, eating asparagus causes a distinct urine odor.

Foul-smelling urine may be due to bacteria. Sweet-smelling urine may be a sign of uncontrolled diabetes or a rare disease of metabolism. Liver disease and certain metabolic disorders may cause musty-smelling urine.

Some conditions that can cause changes in urine odor include:

  • Bladder fistula
  • Bladder infection
  • Body is low on fluids (concentrated urine can smell like ammonia)
  • Poorly controlled diabetes (sweet smelling urine)
  • Liver failure
  • Ketonuria (presence of high levels of ketone bodies in the urine)

When to Contact a Medical Professional

 

Contact your health care provider if you have signs of a urinary tract infection with abnormal urine odor. These include:

  • Fever
  • Chills
  • Burning pain with urination
  • Back pain

 

What to Expect at Your Office Visit

 

You may have the following tests:

  • Urinalysis
  • Urine culture

 

 

Open References

References

Gharavi AG, Landry DW. Approach to the patient with renal disease. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 100.

Navarro D, Fonseca NM, Garigali G, Fogazzi GB. Urinalysis. In: Johnson RJ, Floege J, Tonelli M, eds. Comprehensive Clinical Nephrology. 7th ed. Philadelphia, PA: Elsevier; 2024:chap 4.

Riley RS, McPherson RA. Basic examination of urine. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 24th ed. Philadelphia, PA: Elsevier; 2022:chap 29.

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              Review Date: 7/3/2025

              Reviewed By: Linda J. Vorvick, MD, Clinical Professor Emeritus, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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