Symptoms of renal hypertension are usually characterized by renal impairment combined with hypertension. It can be divided into renal hypertension and renal vascular hypertension. 1. Renal hypertension: including acute and chronic glomerulonephritis, diabetic nephropathy, polycystic kidney and other renal pathologies. The mechanism is mainly due to the large loss of renal units, resulting in sodium and water retention, increased circulating volume of hypertension, often accompanied by proteinuria, hematuria and anemia, reduced glomerular filtration function and decreased creatinine clearance. 2. Renal vascular hypertension: it is hypertension caused by unilateral or bilateral stenosis of renal artery trunk or branches. Common causes include multiple aortitis, renal artery fibromuscular dysplasia and atherosclerosis. Early relief of stenosis can restore blood pressure to normal. Any rapidly progressing or suddenly worsening hypertension should be suspected. Vascular murmurs can be detected in the corresponding areas during physical examination. If unexplained hypertension occurs, it is recommended to consult a doctor in time, complete relevant tests under the guidance of a physician, identify the cause and actively treat it with regular monitoring of blood pressure and regular use of medication.