Symptoms of renal artery stenosis are usually due to secondary changes caused by renal artery stenosis, including renal hypertension and vascular renal failure. Common symptoms are manifestations of hypertension such as headache, dizziness, palpitations and chest tightness. Symptoms of renal artery stenosis include hypertension, regional vascular murmurs in the kidney and decreased renal function. Difficult to control hypertension: age is mostly below 35 and above 55, while the onset is more common in young people, with short history and rapid development of the disease; the cause of hypertension is due to renal artery stenosis after the renal ischemia and insufficient blood supply, the kidney will secrete a kind of angiotensin, which causes the blood vessels of the whole body to contract violently. This causes the patient’s hypertension, which is endocrine in nature, and the diastolic blood pressure is very high. In general, high blood pressure in atherosclerosis is very high systolic blood pressure, but not very high diastolic blood pressure. In the case of renal artery stenosis, the diastolic blood pressure can be very high. Children’s blood pressure is generally not very high, systolic blood pressure is 90 mmHg, diastolic blood pressure is 60 mmHg, if children’s blood pressure exceeds this range, for example, is more than 90 mmHg, 120 mmHg is also there, is also should be considered abnormal blood pressure. Murmur of blood vessels in the kidney area: This is an uncommon manifestation and can only be detected by a professional doctor on auscultation. Decline in kidney function: The chronic process of renal artery stenosis over a long period of time will cause a long-term lack of blood supply to the kidneys, and the kidneys will atrophy, and consequently, the kidney function will decline. The symptoms of renal artery stenosis are manifestations of hypertension, but the condition is short developing fast and difficult to control with hypertension medications. If these symptoms are present, hypertension caused by renal artery stenosis needs to be highly suspected.