I ran out of PM's for the day... PM me and I will get back to you by e-mail if you really want an answer :I
I see this is a few days old but if you still need help on this, PM me. I unfortunately know quite a lot about anatomy, especially 'personal' anatomy. However, if this is something truly vulgar I suggest you research it yourself.
I know lots about anatomy of all kinds myself from schooling and personal research alike. If you still find yourself needing help, I too am willing to issue advice if it's still needed. Just remember, if it's a medical issue you feel might be pertinent, just go to the doctor. Don't research on the internet, as you'll just scare yourself into thinking it is far worse than it actually is. If it's very personal of a non-medical variety, don't be afraid to Google it up. You might find the answer is more simple than you thought.