As long as the kidney function is good, it will not affect the life expectancy. The human body has two kidneys, one on each side. The kidney is one of the most important organs of the human urinary system, and its main function is to produce urine through the blood flowing through the kidney and through the filtration of the glomerulus, to discharge the waste produced by the body’s metabolism in the form of urine. Therefore, theoretically if the remaining kidneys are not diseased and the kidney function is normal, the remaining kidneys are fully capable of excreting the task, and as long as the kidney function is good, it will not affect the life expectancy. It is just that we must pay more attention to protect the kidneys carefully in the future, such as reducing colds, avoiding indiscriminate use of drugs, avoiding high blood pressure, low salt diet, reducing trauma, etc. Once the remaining kidneys are also diseased, early diagnosis and treatment should be carried out to avoid the development of uremia which can affect life expectancy.