A woman’s pelvis consists of four bones (paired innominate bones, coccyx, and the sacrum) held together by ligaments. The size and shape of these bones have a tremendous impact on how a woman looks physically. The pelvic shape is classified by the “Caldwell-Moloy” (4) system.

There are four “pure” pelvic shapes in this system–android (A), gynecoid (B), anthropoid (C), and platypelloid (D) shaped pelvis. The pelvis of any person may have some features of the opposite sex. A and C are most common in males, B and A in white females, B and C in black females, while D is uncommon in both sexes (3).
Continue Reading…