For the most part, kidney stones do not lead to bad kidney function, but a small number of patients with kidney stones may affect kidney function and thus develop bad kidneys. The next specific talk, which conditions will lead to bad kidney. First, kidney stones lead to complete obstruction of the upper urinary tract bilaterally, and the patient appears to be anuric. Second, isolated kidney, that is, patients with only one kidney, if there is a kidney stone, resulting in complete obstruction of the upper urinary tract. Third, one kidney is not functional and the other side of the upper urinary tract feels completely more obstructed. Fourth, one side of the upper urinary tract is completely obstructed, but the other side of the normal kidney reflexively urinates closed. All of these conditions will lead to anuria and hydronephrosis, and if not lifted in time, the patient’s kidney function will be affected, and even the possibility of chronic renal failure. Therefore, if these conditions occur, they should be treated actively. Usually anuria occurs within a week of active treatment kidney function can generally be restored.