Diabetic kidney disease, also called diabetic nephropathy, is a type of chronic kidney disease caused by damage to the kidneys as a result of diabetes. Over time, high blood glucose levels associated with diabetes can damage the tiny filters in the kidneys called glomeruli. This can progressively reduce their ability to filter waste from the blood, potentially leading to kidney failure. Symptoms of diabetic kidney disease may include swelling, poor sleep or concentration, nausea or weakness. It can be diagnosed through urine and blood tests and managed through strict control of blood sugar and blood pressure levels.