Aug 2, 2022 · Protein in your urine (proteinuria) happens when proteins leak into your pee. It can be a sign of kidney disease. It might make your pee foamy or bubbly.

Jul 19, 2023 · Albuminuria (proteinuria) is caused by kidney damage, specifically when the damage occurs in the glomerulus (the kidney’s filter). Sometimes this is temporary (short-term damage), while …

What is proteinuria? Proteinuria, also called albuminuria, is elevated protein in the urine. It is not a disease in and of itself but a symptom of certain conditions affecting the kidneys.

Nov 5, 2025 · Protein in urine (Proteinuria) symptoms, causes, tests and treatments Having protein in your urine is a sign that your kidneys may be damaged. Learn what causes protein in the urine, …

Mar 20, 2025 · Learn about possible causes of elevated protein levels in urine tests.

Proteinuria is the presence of excess proteins in the urine. In healthy persons, urine contains very little protein, less than 150 mg/day; an excess is suggestive of illness.

Dec 3, 2025 · Protein in urine (proteinuria) is a sign of kidney disease but has other causes as well. Learn more about the symptoms, causes, diagnosis, and treatment.