Whether the kidney function can be recovered after peritoneal dialysis depends on the situation. Generally, the kidney function may be recovered after acute renal failure is relieved from the factors of kidney damage. However, if chronic kidney disease enters into uremia stage, the kidney is severely damaged, and the kidney atrophies or becomes small and thin, even if peritoneal dialysis is carried out, the renal function is difficult to recover. If the acute kidney injury caused by the rapid decline of renal function in a short period of time due to the decrease of renal perfusion pressure, after a period of replacement therapy with peritoneal dialysis in a timely manner, it can minimize the degree of renal injury and promote the recovery of renal function, and the prognosis is generally good. For patients with chronic renal failure in uremia stage, because the kidneys have lost the function of excreting toxins and water, so even if peritoneal dialysis can only improve the symptoms, at this time of peritoneal dialysis plays a long-term replacement of renal function, once stopping peritoneal dialysis and do not use other alternative therapies, the patient’s condition will be rapidly deteriorated in a short period of time. If patients have kidney injury, they should consult the hospital in time and take active treatment under the guidance of physicians to avoid delaying the condition.