There is no evidence of evidence-based medicine for the application of ultrashort wave therapy for acute renal failure. Ultrashort wave therapy has been used clinically for the treatment of osteoarthritic diseases and boils, and there is no evidence related to the treatment of acute renal failure. Acute renal failure should be treated with regular therapy, including correction of reversible causes, symptomatic treatment, renal replacement therapy, etc. 1. Correcting reversible causes: such as massive bleeding or diarrhea, vomiting, resulting in massive fluid loss and other pre-renal factors, at this time the need for blood transfusion, rehydration and other treatments; renal factors such as interstitial nephritis may need to use glucocorticosteroids, such as prednisone, tubular necrosis or tubular luminal blockage requires rehydration and other treatments; post-renal factors such as stones, tumors and other obstruction of the urinary system, requiring surgical treatment, and so on. 2. Symptomatic treatment: such as the use of 10% glucose plus insulin, 10% calcium gluconate, furosemide and other potassium-lowering treatments when hyperkalemia occurs; the application of 5% sodium bicarbonate to correct the metabolic acidosis; if there is an infection, actively anti-infective treatment, and so on. 3. Renal replacement therapy: when the renal function is seriously reduced and serious internal environment disorder that may endanger life occurs, renal replacement therapy is needed. It mainly includes hemodialysis treatment and peritoneal dialysis treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication. Patients with acute renal failure are advised to go to regular hospitals in time and receive standardized treatment under the guidance of doctors.