Not all patients on peritoneal dialysis will eventually have to be switched to hemodialysis; patients with concurrent peritonitis may be switched to hemodialysis as needed. The more common complication of peritoneal dialysis is peritonitis. In the process of dialysis, if the disinfection is not in place, it is easy to induce the emergence of peritoneal infection, so that many patients go through 2 to 3 times per month peritoneal infection, and then need to be hospitalized to receive treatment, once the occurrence of multiple peritoneal infections, will lead to peritoneal function is seriously reduced, can not accept peritoneal dialysis, and the need to change to hemodialysis. At present, with the advancement of double-bag peritoneal dialysis fluid technology, the chances of abdominal cavity infection are greatly reduced, which makes the peritoneal function well protected, and this situation can receive peritoneal dialysis for a long period of time, which can be seen in the clinic to maintain the patients for 30~40 years. In addition, whether it is peritoneal dialysis or hemodialysis, there are certain risks, so patients need to go to a regular hospital to receive evaluation and under the guidance of the doctor to choose the appropriate dialysis method.