Our medical articles are always going to be somewhat difficult for readers to understand, since medical topics are usually outside of the understanding of the general public (though the general public might be familiar with some aspects). The same goes for a lot of Wikipedia science and math articles. Is there any Wikipedia medical article that is completely understandable to our non-medical readers...other than some of our WP:Stub or sort of WP:Stub articles? That stated, I do think you did okay with the lead of the Vagina article. Some of that content, as I mentioned above, was indeed unnecessarily wordy.