Acute renal failure is a syndrome caused by many causes, which can be extra-renal or renal, causing temporary and acute collapse and loss of function of both kidneys, due to rapid cessation or decrease in glomerular filtration rate.

Chronic kidney failure is a disease that cannot be completely cured. Current treatments for chronic kidney failure can only help slow down the progression of the disease and reduce symptoms and complications in the patient's body. However, the effectiveness will be proportional to the time of detection and treatment.

Acute kidney failure occurs when the kidneys lose their ability to filter waste products from the blood, causing toxic substances to build up and causing an imbalance in blood chemistry. Acute kidney failure is common in people being treated in the hospital, especially those who are seriously ill and need special care. Acute kidney failure can be fatal and requires intensive treatment.