Quote Originally Posted by jenniferh View Post
I did like suggested and just got back from a short ride in my normal athletic shorts (the kind you wear for running) and regular underwear. My labia/vulva were totally smooshed. They felt like they were being pushed to the sides becuase the seat was in the way. That led to burning, but no numbness. My sit bones still feel good. I have the beginning of a little chaffing on the lips but I didn't ride long enough for it to become actual chafing.
The saddle is too narrow, so you are weighbearing on the pelvic floor and the pubic arch. Your vulvar tissues are being pushed to the sides because you are jamming that saddle up your crack until it hits something and stops. It's missing your sit bones and lodging in the gradually narrowing angle of your pubis.

A picture is worth a thousand words: http://en.wikipedia.org/wiki/Pelvis