Article · 4 min read
Foamy Urine and Protein
What foamy urine can indicate, and when a urine protein test is worth doing.
Last updated: 24/9/2026
Occasional foamy urine is usually harmless, but persistently foamy urine can be a sign of protein leaking into the urine.
What to check
A simple urine test for protein can clarify whether the foam reflects protein in the urine.
Frequently Asked Questions
Does foamy urine always mean kidney disease?
No — it can be harmless, but persistent foam is worth a urine protein check.
Sources
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This page is for general education only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified doctor about your specific condition.