Operations were performed on 242 patients (49 out of 110 children and 193 out of 220 adults) with nonorganic new growths of the true pelvis. Nine surgical approaches were used: transperitoneal (89 patients), transperitoneal-unguinal-femoral (2), extraperitoneal (48), transgluteal-transsacral (23), parasacral (14), transuterine (4), interlabial (2), perineal (16), combined (44). The transperitoneal approach was used most frequently--in 52.0% of patients (taking into account the combined approach), more often in children than in adults, and more often in males than in females. The choice of the approach was mostly guided by the location and size of the new growth in the true pelvis.