How long a patient can live after 3 dialysis sessions in 1 week is related to whether the patient has combined cardiovascular and cerebrovascular diseases, dialysis complications and other factors, and the average life expectancy is about 5-10 years. Dialysis is mainly used in patients with impaired kidney function to help patients excrete harmful substances from the body and maintain the body’s water-electrolyte balance. Since hemodialysis treatment requires systemic heparinization, patients with cerebrovascular disease are prone to induce brain hemorrhage, which can shorten the survival period of patients, who may survive for only a few weeks or months. Patients who are younger and in generally better condition may survive for more than 20 years on dialysis 3 times a week. In general, the average survival time for a patient on dialysis 3 times a week is about 5-10 years. In addition, during the inter-dialysis period, it is important to control the water intake and to ensure that the body weight does not exceed 5% between 2 dialysis sessions. In addition, a light diet is recommended, and salt intake should be reasonably controlled according to the doctor’s recommendations.