Diabetic nephropathy is kidney disease that is a complication of diabetes. It can occur in people with type 2 diabetes, the diabetes type that is most common and is caused by resistance to insulin, or in people with type 1 diabetes, the type that more often begins at an early age and results from decreased insulin production. Diabetic nephropathy is caused by damage to the tiniest blood vessels. When small blood vessels begin to develop damage, both kidneys begin to leak proteins into the urine. As damage to the blood vessels continues, the kidneys gradually lose their ability to remove waste products from the blood.
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