How long it takes for hypertensive nephropathy stage 2 to stage 3, first of all, you need to judge the control of patient’s blood pressure. Stage 2 may progress to stage 3 in a few days if it is not well treated; if it is well controlled, stage 2 may take about 10 years to progress to stage 3, so it takes an indeterminate amount of time for hypertensive nephropathy stage 2 to progress to stage 3. Hypertensive nephropathy is caused by long-term high blood pressure, which leads to atherosclerosis of small renal arteries and elevation of blood creatinine. The time of progression varies because everyone’s blood pressure is controlled differently and the effect of using medication is different. Stage 2 of hypertensive nephropathy means that the glomerular filtration rate (GFR) is 60-89 ml/min, and stage 3 means that the GFR is 30-59 ml/min. In stage 2 of nephropathy, you need to use reasonable antihypertensive drugs to slow down the development of the disease, and you can choose angiotensin-converting enzyme inhibitors or angiotensin receptor antagonists for treatment, such as valacyclovir, enalapril maleate, and benazepril, etc., which can lower the blood pressure, reduce the pressure in the glomerulus, and reduce the production of proteinuria. Stage 2 may progress to stage 3 in a few days if the treatment effect is not good and combined with cardiovascular and cerebrovascular diseases; if the blood pressure control is stable and the amount of proteinuria is less, stage 2 may take about 10 years to progress to stage 3, so the time needed to progress from stage 2 to stage 3 of hypertensive nephropathy is not fixed. For patients with hypertension who are found to have impaired renal function and decreased glomerular filtration rate, it is recommended to consult the nephrology department of regular hospitals and follow the doctor’s instructions.