Most patients who start dialysis at the age of 50 can survive for more than 10 years, and some may survive for more than 15 years, with reasonable and adequate dialysis treatment, if they follow medical advice. The specific life expectancy of patients who start dialysis at the age of 50 is also related to the severity of the disease, the timing of treatment, the length of dialysis, and complications. If the complications can be controlled by adequate dialysis, it can significantly improve the quality of life and prolong the life span. As the duration of dialysis treatment increases, the long-term survival rate of patients will also be affected. 1. Hemodialysis: It can be used for the treatment of patients with earlier stage of kidney disease, and also for the treatment of patients with hyperkalemia, metabolic acidosis, acute heart failure, pulmonary edema, cerebral edema, etc. Starting hemodialysis treatment at the age of 50, if it is in the early stage of the disease, the severity of the disease is low, there are no complications or the complications can be controlled, and the life span of the patient can be prolonged. If the disease is already more severe when dialysis is started at age 50 and complications cannot be effectively controlled, there may be no significant maintenance effect on the patient’s life expectancy. In addition, choosing an autologous internal fistula as a vascular access for hemodialysis, or patients with high hemoglobin and blood albumin levels themselves can also extend survival time to some extent after adequate dialysis; 2. Peritoneal dialysis: mainly used for patients with end-stage renal disease, it is an effective renal replacement therapy, and if dialysis is started at age 50 and there are no acute complications, such as abdominal infections, the patient’s Survival time is longer. If the patient is already at the end stage of kidney disease, the patient’s quality of life may gradually decrease as the time of dialysis continues to increase, and dialysis may cause the loss of nutrients in the patient’s body, and the survival period may be shortened. Therefore, in order to improve the effect of dialysis treatment and the quality of survival, it is recommended that dialysis patients should choose more foods rich in protein, water-soluble vitamins, trace elements and other nutrients to enhance their physical fitness and provide favorable conditions for obtaining a good prognosis.