Multiple stones in the left kidney usually often cause clinical symptoms such as pain, hydronephrosis and hematuria, so left kidney stones need to be treated actively. Left kidney stones are usually treated clinically by surgery. The safer and more effective method is percutaneous nephrolithotomy, stone extraction surgery through the surgical method, can break the kidney stones, flushed out of the body, before and after the operation can generally be prevented and controlled by antibiotics infection. In addition, a ureteral double J tube should be left in place to drain urine after the operation to avoid residual stones and cause urinary obstruction after the operation. Usually surgical treatment of kidney stones can generally be cured at once, and the surgical method is widely carried out in clinical practice and accepted by the general public.