Locate the renal stone with pain radiating to medial side of thigh and perineum due to slipping of stone in males
The clinician is able to judge the position of the stone by the history of pain - Ref : S. Das manual, 4/e p408
At pelvic brim
Intramural opening of ureter
Junction of ureter and renal pelvis
At crossing of gonadal vessels and ureter
Urology