The atrophy of one kidney cannot be considered a major disease. The compensatory ability of the kidney itself is relatively strong, one kidney atrophy, the other side of the kidney function is good, generally can maintain the physiological needs of the human body, can eliminate excess water and metabolic waste, to maintain the balance of the environment within the human body, so clinically one side of the renal insufficiency, the other side of the renal function is good, it will not have a particularly large impact. To find out the root cause of unilateral renal atrophy and interventional treatment for the cause, it is necessary to rule out the existence of renal artery stenosis, which can be judged by isotope nephrogram to evaluate the renal function, and to confirm that if renal artery stenosis exists, stent implantation is needed for treatment, and if the lesion is mild, the atrophied kidneys can be returned to normal in general. If atrophy of kidney is found, it is recommended to consult the nephrology department of regular hospitals for evaluation of renal function and standardized treatment according to the doctor’s prescription.