Since laparoscopic cholecystectomy has become the standard procedure for the treatment of gallstone disease, several cases have been reported in patients with situs inversus. These cases require more technically demanding procedures due to the symmetrical disposition of the anatomy. Thus, handedness could influence the performance of these operations. The two of us (L.M.O.) and (J.M.B.), a right-handed and a left-handed surgeon, respectively, placed the instruments in reverse mode from that used in orthotopic patients. The right-handed surgeon felt more impairment when dissecting with his left hand and decided to cross the instruments within the abdomen. The left-handed surgeon was able to alternate the performance of the dissection maneuvers between the right and left hands. Surgical procedures are apparently designed for right-handed surgeons and can be approached by the left-handed in alternative ways. In fact, the accommodation of laparoscopic cholecystectomy to left-handedness has been described in the literature. The rare opportunity to operate in a symmetrical way allows the right-handed surgeon to understand the absence of comfort and ergonomy often experienced by left-handed colleagues.