Answer
The male pelvis is different in structure from the female pelvis, and there are many feature by which the two are identifiable:
Generally, the typical male pelvis is more rugged, heavier, and thicker than the females'. On the other hand, the typical female pelvis is wider and shallower and has has adaptations for childbirth-- larger outlet and larger inlet.
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Other features that distinguish a male from a female pelvis are the following:
Tilt--the upper end of the female pelvis tends to tilt forward while the similar feature is almost vertical in males.
Depth: The lilium is higher/farther above he sacroiliac joint; therefore the the male pelvis is deeper
Width (greater pelvis): Hips are more flared and the anterior iliac spines are farther apart
Pelvic inlet; heart-shaped in makes, oval in females
Pelvic outlet-- larger in females. Subpubic angle: wider in males
Pubis symphysis taller in males
Body of female pubis is more rectangular in contrast to the more triangular shaped male pelvis
The following are also well-known diagnostic differences: the obturator foramen is oval to triangular in females, but rounded in males; in females, the smaller acetabulum is narrower and faces anteriorly , while in males it is larger and laterally facing; also, the male sacrum is narrower and deeper; in addition, and very important diagnostically the female coccyx is more movable and tilted posteriorly , while the male has a more vertical and less movable coccyx.