It is not the age of the elderly whether they can choose dialysis or not. Some patients can choose dialysis even if they are older, as long as it does not affect their heart function. If the age is relatively young but the heart function is not tolerated, dialysis cannot be chosen, so the choice of dialysis has nothing to do with age. Many patients feel that they are too old and don’t need dialysis over 80 years old, or that dialysis affects their life span. With the continuous progress of blood purification technology, the technology is more mature. If elderly people over 80 years old have hyperkalemia that cannot be corrected by drugs, or edema, or heart failure, consider hemodialysis treatment, but hemodialysis treatment may affect heart function, heart function can be assessed by cardiac ultrasound, if heart function can be tolerated, hemodialysis treatment is recommended, which is helpful to solve hyperkalemia, heart failure, and hyperuricemia, hemodialysis will not affect as toxins are cleared life expectancy, and even better quality of life can be addressed. Nowadays, many patients over 80 years old in our hospital dialysis unit, dialysis not only does not affect the quality of life, but some of them can live on their own and achieve the expected results.