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 important ...

A urine protein-creatinine ratio (UPCR) test looks for high levels of protein in your urine, which can happen in kidney disease. Results that are higher than average may be a sign of a kidney-related ...

Medically reviewed by Matthew Wosnitzer, MD Foamy urine may indicate protein in your urine, which could suggest a kidney ...

Your urine can signal liver problems. Dark or brown urine indicates bilirubin buildup. Foamy urine suggests protein leakage.

June 6 (Reuters) - Otsuka's (4578.T), opens new tab experimental therapy for a potentially life-threatening kidney disease more than halved severe levels of protein in the urine of patients, ...