The 5-year disease recurrence-free survival rate of stage T1 kidney cancer can reach 92%, while the proportion of chronic kidney disease among national patients with stage T1 kidney cancer is 25% and may reach 60% in the elderly. For these patients who survive for a long time after surgery and have well-controlled tumors, how to preserve the kidney and reduce the occurrence of subsequent metabolic diseases are the difficult and important points of current tumor treatment! We hope that by improving surgical techniques and carrying out new surgical modalities such as ablation, nano-knife, etc., it is our duty and urgent task to think about patients after 5, 10 or even 30 years as much as possible!