Noticing foamy urine can be concerning, but it’s not always a sign of a serious issue. Occasional foaminess may result from rapid urination or dehydration, but persistent foamy urine can indicate kidney problems or protein leakage (proteinuria). Common Causes of Foamy Urine: Fast Urination – Forceful urination can trap air, causing bubbles. Dehydration –... Why Is My Urine Foamy? If your urine looks foamy, it could be because it hits the toilet fast enough to stir up the water. It may also occur due to toilet chemicals or health conditions,... Foamy urine can be a sign of dehydration, diabetes, lupus, chronic kidney disease or other conditions. Learn how to diagnose and treat foamy urine and when to see a healthcare provider. Foamy urine is when proteins like albumin are present in your urine, making it look frothy or foamy. It can be harmless or a sign of a kidney problem, depending on the cause and frequency. Learn about the possible causes, symptoms, treatments, and prevention of foamy urine.