Protein in Urine, also called proteinuria, is a condition where an abnormal amount of protein is found in the urine. Normally, healthy kidneys filter waste from the blood while keeping essential substances like protein in the bloodstream. When the kidneys’ filtering units become damaged or weakened, protein may leak into the urine.

Protein in urine can occur due to several reasons, including kidney disease, diabetes, high blood pressure, infections, or dehydration. Sometimes it may also appear temporarily after intense exercise, stress, or fever.

In many cases, proteinuria does not cause noticeable symptoms in the early stages. However, some people may notice foamy or bubbly urine, swelling in the hands, feet, or face, and fatigue. Doctors usually detect protein in urine through a urine test during a routine medical checkup. Early diagnosis and proper treatment are important to protect kidney function and prevent further complications related to kidney health.