Few men would be brave enough to say they were experts when it comes to vagina. In truth, many women don't know all that much about the topic either. Given the role it plays in daily functioning, sex, and babymaking, it is a body part worth understanding — whether you have one or not. "The vagina is a very special place," says Dr. Ja-Hong Kim associate professor in the division of Pelvic Medicine and Reconstructive Surgery at UCLA Urology. Regardless of what you're curious about, this crash-course in vaginal knowledge is sure to answer some of your top queries.