Whether or not a kidney injury can be recovered depends mainly on the cause of the kidney injury. Most of the acute kidney injury can be recovered, while chronic kidney injury usually cannot be recovered. 1. Acute kidney injury: If the kidney function is impaired due to severe infection, massive bleeding, severe vomiting, diarrhea, urinary stones, etc., most of the acute kidney injury can be recovered after correcting the reversible factors such as anti-infective treatment, supplementing the blood volume and removing the obstruction. 2. Chronic kidney injury: such as kidney injury caused by hypertension, diabetes mellitus, high uric acid, glomerular disease, etc., due to the long course of the disease, irreversible damage to the glomerulus or tubule occurs, which usually can not be recovered, and long-term treatment is needed to actively control the primary disease and slow down the progression of renal function. When patients find kidney injury, it is recommended to go to regular hospitals in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or therapy under the guidance of doctors.