Why Do People Leak Protein From Their Kidneys?


Quick Answer

People leak protein from their kidneys for reasons that include stress, fever, exposure to heat and cold, or exercise that is too intense, according to Mayo Clinic. This condition is called proteinuria.

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Full Answer

Healthy kidneys don't allow too much protein to enter the urine thanks to their filtration systems. However, certain conditions can damage these filters and make the kidneys leak protein on a persistent basis, according to WebMD.

These conditions include chronic kidney disease and kidney infection, diabetes, high blood pressure and other cardiovascular diseases, lupus, certain cancers, pregnancy, rheumatoid arthritis, sarcoidosis and sickle cell anemia, according to Mayo Clinic. Some individuals have kidneys that leak protein when they stand upright. The body may also be producing too much protein.

Other conditions that put a person at risk for proteinuria are obesity, advanced age and genetics. Also, since African Americans, Native Americans and Pacific Islanders have a higher incidence of hypertension, they are more at risk for proteinuria, claims WebMD.

The symptoms of protein in the urine can be silent, and it may take urinalysis to diagnose proteinuria, according to WebMD. The best way to manage proteinuria is to control and treat the disease or condition that is causing it.

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