A urinary stone   is one of the most   common urology diseases in the human, a prevalence in the lifetime is 10%, one of the most disaster complications of urinary stone is an infection that sometimes maybe with a very serious outcome even death, this serious phenomenon more even associated with manipulation like lithotripsy ore ESWL extracorporeal shock wave, a common simple single feasibility  for prediction of  infection post any handling urinary stone is urine culture but is it concordance? , we investigated stone culture for response to this big question.

Material and methods: In 24 patients with upper urinary tract stone which they will be a candidate for nephro- lithotomy procedure, after a consent is taken, in the operating room, after anesthesia, the  bladder was  catheterized  and urine sampling  was done  and nominated  as tube  number one, after approaching the pelvic  second  sampling was done and nominated tube  number 2, when a stone removed  it  was putted   in tube  number 3  with  normal saline after shaking puta another  tube  number 4 with normal saline  after shaking and crashing of stone, it  was  putted  in tube  number 5 and  liquid   fluid  of  all  tubes  were cultured  for  gram-positive and gram-negative microorganisms.

Results: In three samples the number one tubes were negative but the number 2 tubes were positive, and 7 samples of number 5 tubes were positive, overall   in 12% there was no concordance with the bladder sample, 30 % of stones were culture positive.

Conclusion: There was not totally concordance stone culture and bladder urine culture, and pelvic culture with bladder culture, a stone culture is the definitive diagnosis of the microorganism involve with post handling of stone bacteremia

Keywords: Stone culture, Urine culture, Bacteremia, ESWL, Lithotripsy