Acute renal failure needs to be treated with appropriate drugs chosen according to the cause of the disease. According to the anatomical location of the cause, it can be divided into three categories: pre-renal, renal and post-renal. For example, pre-renal factors lead to acute renal failure, which may require blood transfusion, fluid transfusion, etc.; renal factors may require hormone therapy such as prednisone; and post-renal factors often require surgical treatment. 1. Pre-renal factors: mainly due to massive bleeding or diarrhea, vomiting, resulting in large amounts of fluid loss, the need to replenish blood volume in a timely manner, to restore the blood supply to the kidneys. At this time, blood transfusion, fluid replacement and other treatments are needed. 2. Renal factors: common because of poison, drugs or infection caused by tubular epithelial cell necrosis or interstitial nephritis, can also be seen in nephrotic syndrome, etc., need to be treated according to the cause of the disease, such as interstitial nephritis may require the use of glucocorticosteroids, such as prednisone, tubular necrosis or tubular luminal blockage requires rehydration and other treatments. 3. Post-renal factors: commonly found in stones, tumors and other factors that block the urinary system. Often need surgical treatment, such as ureteroscopy retrograde removal of stones, removal of tumors and other treatments. 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, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of doctors.