Renal artery stenosis has different treatments and effects depending on the cause of the disease. Generally, it cannot be cured, but sometimes it can be clinically cured by placing a stent. Common causes of renal artery stenosis include atherosclerosis, fibromuscular dysplasia, aortitis, etc. The main treatments can be categorized into internal medicine and surgical treatment. 1. Internal medicine: medication cannot stop the progression of renal artery stenosis, but it can help to control high blood pressure and improve symptoms. In order to effectively control blood pressure, a combination of antihypertensive drugs is often needed, and it is necessary to detect changes in blood pressure and take medication under the guidance of specialized physicians. 2. Surgical treatment: common procedures include percutaneous balloon dilatation angioplasty, which is suitable for patients with fibromuscular dysplasia. Percutaneous transluminal renal artery stenting is suitable for patients with atherosclerosis and aortitis. Atherosclerosis is the most common cause of renal artery stenosis, accounting for up to 80% of cases, mainly in the elderly. Fibromuscular dysplasia, renal artery stenosis due to aortitis is mostly seen in young people. Patients with renal artery stenosis should go to the hospital in a timely manner, complete the examination under the guidance of the doctor, clarify the cause of the disease, and timely symptomatic treatment. Should also be supplemented with smoking cessation, weight control, moderate exercise, control of blood lipids and other treatments.