How many years it takes from chronic glomerulonephritis to renal failure depends on the type of pathology as well as the accompanying and complicating conditions. If the pathologic type is relatively mild, such as tiny lesion type or without significant accompanying diseases and complications, this situation is relatively long, 10-20 years can be maintained without entering chronic renal failure. If the patient’s pathology type is more severe, there is hyperlipidemia as well as glomerular hyperfiltration state, glomerular internal high pressure, and there are repeated infections, venous thrombosis and other complications of the situation. This situation has a poorer prognosis, and it is easy to enter into chronic renal failure in about 10 years, and it is necessary to take early treatment to prevent the acceleration of the patient’s renal failure, and it is necessary to actively consider taking the way of renal replacement therapy.