The high level of glucose in a diabetics blood damages blood vessels in the kidney resulting in the kidney being damaged. Eventually dialysis and/or transplantation will be needed.
@OliverYoung Proteinuria (protein in the urine) can be a symptom of diabetic nephropathy and is often linked to poor control of blood sugar levels. The elevated blood sugar eventually leads to the kidney becoming “leaky” (e.g. protein that would normally be filtered and returned to the blood instead passes through the kidney into the urine). If it progresses far enough, diabetic nephropathy can lead to complete kidney failure and the need for dialysis.
People with diabetes may, over time, develop nerve damage throughout the body called diabetic neuropathies, a set of nerve disorders caused by diabetes. http://healthy-ojas.com/diabetes/neuropathy.html
Nephropathy means kidney disease or damage. Diabetic nephropathy is damage to your kidneys caused by diabetes. In severe cases it can lead to kidney failure. But not everyone with diabetes has kidney damage.
There are no symptoms in the early stages. So it’s important to have regular urine tests to find kidney damage early. Sometimes early kidney damage can be reversed. As your kidneys are less able to do their job, you may notice swelling in your body, most often in your feet and legs.
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