I've not heard of this happening before, so I can't give you any answers or even point you in any direction for information - I'm so sorry
I'm not sure, have you looked up cervical ectropion (a benign condition)? Good for you for encouraging her to go to the doctor and get this checked out! She is very lucky to have a friend who cares enough about her to do that! I hope that you will also consider attending appointments with her to help her with any results that she might get. I wish you and your friend well.