Small amounts of protein can appear in your urine and be OK. Above a certain level, however, may indicate proteinuria, which can be a red flag for kidney disease. Proteins are among the most ...

While bubbles are clear ... Foamy pee is often a sign that there is protein in your urine, according to Northwestern Medicine, and in some cases, it could be a sign of kidney disease.

While bubbles are clear ... Foamy pee is often a sign that there is protein in your urine, according to Northwestern Medicine, and in some cases, it could be a sign of kidney disease.