Diabetic nephropathy is divided into several stages, from mild to severe. In the early stage, patients only have an increased glomerular filtration rate and the proteinuria is not significant. As the disease progresses, the protein in the urine increases, eventually leading to renal failure and even developing into uremia. The entire process can last many years, with some patients experiencing it for up to ten years. In fact, when diabetic nephropathy progresses to its final stage, uremia, patients still have many treatment options, such as hemodialysis, peritoneal dialysis, or kidney transplantation, and even combined kidney and pancreas transplantation. Therefore, how long a patient can live depends on the patient's age, presence of cardiovascular and cerebrovascular diseases, and the choice of treatment methods, among other factors.