it could be a few thinkgs like a yeast infection but i have had tons of those and havnt had any bleeding that I noticed... i know its embarrassing for her to talk about it but ask her if shes been feeling itchy down there or noticed any white discharge on her panties. its nothing to serious and can be treated easily, you will need to be treated also because men can get yeast infections also its just not as noticeable in men than it is in us ladies. if you dont have enough time to make it to the drs right away have her stop by the market and pick up a Canesoral package( it comes with cream and one tablet you swallow) make sure to get two so you can take one of the pills too, and wait a week b4 sex if no improvements this shoud rule out that its not a yeast infection! It could also be a bacterial infection. if its kinda fishy smelling and hurts, she will need that cleared up asap cause it can cause infertility! (what my drs told me). again though im kinda stumped on the blood part, it could be that she is just dry and its chafing and hurting her. try a little bit of lube. I would suggest that you use a condom though because there are lots of things out there that you can catch. even if its something simple that she may have. im not saying shes slept around w/ a lot of people but its better safe than sorry. just tell her not to worry and you will find the end to it soon! best of luck! keep me posted :)
there are so many types of infections women can get down there(that aren't std's) so the best thing to do is wait for the doctor to tell her whats going and to not have sex till the doctor clears it because it will just irritate the infection and make it worse