skeleton question

[KnottedYet]

Oops, yeah, sorry! Rami are boney bits!

Ish tubs are gigantic critters, and you can be sitting all kinds of ways on them. They blend into the rami. (they really are one piece) If you are on the rami themselves, just make sure you aren't hurting the soft tissue between the rami and the saddle. (it's not as tough as the stuff closer to the ish tubs).

I need to find a good skeleton picture... <knot goes off to google>

Edit: Ok, here's a fairly decent pic http://en.wikipedia.org/wiki/Image:Gray241.png Mind you, this is a male pelvis. Female pelvises tend to have more vague ishial tuberosity-becoming-rami zones. (our tubs are bigger, if ya wanna look at it that way!)

See the bits at the bottom that look like donuts with their front edges glued together?

The ish tubs are the bottom halves or so of those donuts. Nice and thick and good for sitting on. And kind of round, so you can roll a good bit on them fore and aft and still be ON them, like rocking chair rockers. (I sit fairly square on my ish tub rockers, you may naturally sit more toward the front of your rockers.)

The rami are the donut-bits that are closer to where the two donuts stick together (pubic symphysis). In the Gray's Anatomy picture the rami are kind of where the words "pubic arch" are printed. You can feel the rami to either side of your labia. (feel upward from the ish tub and follow the bone all the way up to the pubic bone) The skin over the rami area is thinner and soft tissues in that neighborhood are generally a lot more tender.
If it is truly the *rami* you are weightbearing on all the time, monitor your comfort level. If you feel ok, don't worry. The pic I posted is a male pelvis, the woman's has more wiggle room in the ish tub zone. Your donuts might be more ish tub-y farther forward into what might be more rami-y for someone else.

If it don't hurt, don't worry too much.