The general duration of peritoneal dialysis for several years is mainly related to the condition of the patient’s peritoneum, the presence of infection and personal constitution, etc., and should be analyzed on a problem-specific basis. If a patient on peritoneal dialysis is in good health, follows the doctor’s instructions and requirements strictly, has good peritoneal protection, and does not develop infections, etc., he or she can generally last about 5-10 years, or longer. If the patient does not follow the protocol of peritoneal dialysis and develops other complications such as peritoneal infection or catheter sclerosis, or if the physical condition deteriorates after performing peritoneal dialysis, the specific maintenance time of peritoneal dialysis varies from person to person, and it is recommended to consult a professional doctor in the Department of Nephrology in a timely manner and follow the medical advice for relevant treatment. During the period of peritoneal dialysis, patients should pay attention to the bathing time of 15-30 minutes, and the care of the external exit should be carried out in time after bathing. Diet should be low salt and low fat diet.