Signs and Symptoms
Laboratory testing is the only way to know for sure if someone has proteinuria. Several health organizations recommend regular urine tests for people at risk for chronic kidney disease. There are frequently no symptoms associated with proteinuria, especially in mild cases. Large amounts of protein may cause urine to appear foamy. Significant loss of protein from the blood can affect the body's ability to regulate fluids, which can lead to swelling in the hands, feet, abdomen, and face (edema). When symptoms are present, they are usually associated with the condition or disease causing proteinuria.