Published on: 6/20/2025
Why might my urine appear foamy and when should I seek medical advice?
Foamy urine can be caused by protein in the urine, which might happen after exercise or due to certain medications. If you notice persistent foamy urine, it's important to talk to a doctor.
Explanation
Foamy urine can sometimes be seen when there is protein in the urine. This can happen for several reasons, such as after exercise or due to medications like prednisone or acetaminophen.
Exercise: During physical activity, changes in kidney function can lead to increased protein in the urine. This is often temporary and resolves after resting.
Medications: Some medications, like prednisone, can cause changes in protein levels in the urine. Also, acetaminophen, especially when take to excess or for prolonged peroids, can negatively affect the kidneys and might lead to similar issues.
If you notice foamy urine and it doesn't go away, or if you have other symptoms like swelling or tiredness, it's important to see a doctor. They can help figure out if there's an underlying problem that needs attention.
(References)
- Bellinghieri G, Savica V, & Santoro D. (2008). Renal alterations during exercise. Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 18089464.
- Wetzels JF, Gerlag PG, Sluiter HE, Hoitsma AJ, & Koene RA. (1986). Prednisone-induced fluctuations of proteinuria in patients .... Nephron, 3796774.
- Mitić-Zlatković M, & Stefanović V. (1999). Acute effects of acetaminophen on renal function and .... Renal failure, 10516997.
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