Hi there! Sounds like you are very much life myself and a few others wondering about ourselves. I have a skeletal form much like you describe. I have a wide pelvic bones and other skeletal features that by anthropologic skeletal sexing standards would all indicate female. In my case I had a CT scan done to check for possible kidney stones some years ago. I requested the scan CD and found a free program that allows the scan slices to be viewed as 3D images. Curious as I was I read up a great deal. I also asked a couple of doctors and PAs about the images. The only thing they all said was that bone shapes are formed early in pregnancy. Certain joint profiles are effected by the presence of testosterone.
Some more common visable joint profile differences:
Knee joint pivot profile.
Average pivot angle is much greater on females. This makes the lower leg straight as the pelvis widens during puberty. The knees angle is often refered to as Q-angle or quadracept angle. This is also why more women athletes suffer from tendon issues.
Knowing what to look for I now even see this knee difference in my young girls.
Elbow angles are similarly greater on average but there is more overlap in the elbow angle between female and male average ranges.
Less visable the joint between the sacrum and ilium bones is much shorter in females. This makes the adult pelvis much more flexable. The sacral angle is also much more rearward.
Sacrum visibly angled rearward slightly less than 80 degrees. Male normal is around 60degrees.
image by
Josie H, on Flickr
Wide greater sciatic notch. Males normally have a U shape following the sacrum.
image by
Josie H, on Flickr
Wide flaring ilium (pelvic edges you can feel on your sides)
image by
Josie H, on Flickr
I did not get estrogen when I was young and before my pelvic bones fused. For those under 30, estrogen will add bone growth at the pelvic synthesis and widen the hips along with the ischium moved verticle or outward angled. My ischium are near verticle while male skeletons are angled inward toward the pelvic outlet.
There seem to be a few of us with feminine skeletons. My pelvis is wider than my chest/rib cage. For my entire life until I finally decided to transition i felt ashamed of my body shape. I did what I could with my large shirts to hide it the best I could. Now I feel lucky to be me. If I had to be born trans that is.
I do not have any unusual internal structures. Always used to dream maybe I did. I do have a couple of signs of interference in DHT activity during the time my genetal folds form my male outside parts. I have a split penial raphe and what seems to have been an unfused perienial raphe. Also from what I can tell my pelvic floor muscles have a open gap where a vagina would have formed through them. Its all kind of freaky in a way.
