Proteinuria, also known as albuminuria, is the presence of an abnormal amount of protein in the urine. This condition can be an indicator of various health problems, including kidney disease, high blood pressure, and diabetes. Synonyms for proteinuria include urinary protein, protein in urine, protein leak, and albuminuria. These terms all refer to the same condition, where the kidneys are not functioning properly and are unable to filter out excess protein from the body. Treatment for proteinuria may involve addressing the underlying health issue causing the condition, such as managing blood sugar levels or controlling blood pressure, as well as lifestyle changes like a low-sodium diet.