I am 43 yrs old, and put in an average of 4,000 miles per year on a road bike. I can tell you all about saddle sores! I am likely to develop all sorts of problems on any ride exceeding 65 miles, and since I do at least 3 mountain centuries each year, I'm always getting a new sore, or healing an old one. The least serious problem is the simple cystic acne boil someone else mentioned here, that appears as a large zit in the fold of the leg, for me, near my sit-bones. The next step up is a blister that is caused by rubbing as one pedals uphill for 2+ hours...that's a typical water blister on the labia. Heals pretty fast - 3-4 days. The worst ones thus far are Bartholin vulvar cysts - also caused by friction between you and your shorts. These are boils in the skin of the vulva, and are infected/impacted sweat glands. Ouch! If you've got a high pain threshhold, you can pop them. Otherwise you can have a doctor lance them, or even cut them out. Doing nothing isn't an option, as it's like walking around with a rock in your pants. In fact, I refer to this condition as "my oyster's growing a pearl!"

None of this has anything to do with the presence of, or total lack of pubic hair. I can't believe so many women buy into this idea of a hairless muff, when it's a direct result of pornographers wanting to get a better photograph of female genetalia. What next? Shaved heads? Plucked eyelashes? (end rant)

The best defense against pubic sores is to wear a good chamois in a good pair of shorts, lubricated with Chamois Butt'r or similar, and sit atop a saddle that conforms to your particular tush. Oh, and stand up at regular intervals while climbing those mountains!