Dialysis is a technique in which body fluids are filtered through a semi-permeable membrane to remove water and toxins from the body. Dialysis is divided into hemodialysis and peritoneal dialysis, with slight differences between the two processes. Hemodialysis: Hemodialysis requires intravenous cannulation or the establishment of an arteriovenous endovascular fistula to drain blood from the body and pass it through a blood purification filter composed of hollow fibers to remove excess water and toxins from the body before returning the purified blood to the body, usually requiring three and a half days a week to come to the hospital for treatment. Patients should be careful not to move vigorously during treatment to avoid pulling the line and causing the arteriovenous needle or arteriovenous tract tube to dislodge, resulting in bleeding. After treatment, the patient should lie flat for 10-20 minutes and leave only after the vital signs are stable, the puncture site is free of blood leakage, and the endovascular tremor murmur is good. Second, peritoneal dialysis: peritoneal dialysis refers to the placement of a peritoneal dialysis catheter in the abdominal cavity and the daily infusion of clean peritoneal dialysis fluid of about 2000 ml into the abdominal cavity by oneself or family members, and the storage of the abdomen for several hours to remove the excess water and toxins from the body through the exchange of the peritoneal cavity. When the exchange is complete, the peritoneal dialysis fluid containing toxins is released and new peritoneal dialysis fluid is instilled, usually 3-5 times a day. Peritoneal dialysis can be performed in the hospital or at home after evaluation and guidance by a physician. Although some patients can perform the procedure at home on their own with the guidance of a physician, for most patients it is recommended that they actively seek medical attention and be treated accordingly.