Foamy urine: What does it mean?

What does it mean when you have foamy urine? Should I be concerned if it doesn't go away after a few days?

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Answer

Foamy urine is likely nothing to worry about if it happens only occasionally and isn't getting progressively more noticeable. It may just mean that you urinated rapidly, maybe with more concentrated urine — such as due to mild dehydration. You could drink more water to see if it goes away.

However, persistently foamy urine can be a sign of protein in your urine (proteinuria), which requires further evaluation. Large amounts of protein in urine may indicate a serious kidney problem.

If you're concerned about foamy urine, consult your doctor. He or she may recommend a urine analysis, which can detect protein in urine. If protein is detected in your urine, your doctor likely will recommend additional tests to determine the cause.

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