Causes Of Kidney Leaking Protein. Although the surplus protein is found in the urine the disorder is within the kidneys. With diabetes high blood sugar forces the kidneys to over filter the blood.

Diabetes can cause the kidney s filter to become damaged so it leaks out protein that can lead to kidney failure. When kidney disease damages them proteins such as albumin may leak from your blood into your pee. Controlling proteinuria is an important element of treatment because proteinuria itself can hasten the rate of renal failure independently of the underlying disease.
This can cause kidney damage allowing protein to leak into the urine.
Although the surplus protein is found in the urine the disorder is within the kidneys. Proteinuria occurs when there is an excess of protein in your urine. When you have protein in your urine it is called proteinuria or albuminuria. Proteinuria often occurs when the kidneys become inflamed or diseased.