Acute tubular necrosis is mainly treated with adequate nutritional support, maintenance of electrolyte and water balance, prevention of hyperkalemia, and if necessary, hemodialysis treatment. Acute tubular necrosis is the most common type of acute renal failure and is caused by the application of certain nephrotoxic drugs, such as anti-inflammatory and analgesic drugs, and in some patients it is caused by rhabdomyolysis blocking the renal tubules. If acute tubular necrosis does not show symptoms of oliguria or anuria, or if the deterioration of renal function is not very obvious, hemodialysis treatment can be dispensed with at this time, and only adequate nutrition is needed to maintain water and electrolyte balance by infusion, especially to prevent hyperkalemia, and calcium gluconate, tachyphylaxis and high glucose plus insulin can be applied when necessary. If the patient belongs to the more severe type of acute tubular necrosis, with renal failure in a short period of time and already anuric, then hemodialysis treatment is needed. The prognosis of acute tubular necrosis is generally good, and the purpose of all the above treatments is to help patients pass the dangerous period and wait for recovery.