Abstract : Variations in the morphometry of the acetabulum's posterior column can affect intramedullary screw placement for mildly displaced posterior column fractures. This CT-based study aims to present gender-based morphometric differences in the human pelvis in relation to posterior column screw trajectory. We conducted a retrospective study in which we collected CT scans from forty adult patients between the months of December 2020 and March 2021. These patients ranged in age from 18 to 75 years old and did not have any bone lesions or anatomical abnormalities. They had been advised to get a CT scan of their abdomen and pelvis for any other medical reason besides trauma. Mean age was 45to70 years, range 61.2±6.4. Distance between Anterior superior Iliac spine to Posterior superior Iliac spine was M (155.6±1.8): F (152.3±2.2). Posteroanterior angle on Sagital Section (degree) (p = 0.007) M(15.5±0.4) :F (14.7±1.1) and Mediolateral angle on coronal section (degree) (p = 0.053) (M (22.7±1.5) : F(23.5±0.95). Ischial Tuberosity to Iliac Tuberosity length (mm) did not differ (p=0.874) Male (186.4±0.95) and Female (186.5±0.96).