I was doing laundry, and my girlfriend's panties were inside out and had a large, slightly yellowish, crusty stain on the crotch. We have not been having sex lately. I know that girls often get stains there from mucus and what not, but because this was crusty. I am alarmed that it might be semen backflow from another man. Are girls' mucus stains ever crusty? If there is semen there, should it smell like it even though it is dried? Please tell me anything you know.

I am 18 years old and my ex-boyfriend and I have been having phone sex. I need to know why it hurts after I finger myself. And then there is the discharge. I have been discharging for 2 or 3 years and it is white and clear sometimes and I don't know what it is.

I am going to the gynecologist soon, and I don't know what to tell her.