Skip to main content
Member Login
About NKF
Recursos en Español
Search
Donate
Menu
Search
Kidney Basics
Kidney Basics
Treatment & Support
Treatment & Support
Transplantation
Transplantation
Kidney Professionals
Kidney Professionals
Research
Research
Get Involved
Get Involved
Recursos en Español
About NKF
Member Login
What is protein in the urine (proteinuria)?
Your body needs protein. But it should be in the blood, not the urine. Having protein in your urine may mean that your kidneys are not filtering your blood well enough.