It can't come out there - but blood can "run" there when you are wearing pads instead of tampons.
Clots can also force a blood trail to move back up into that area, but unless you cut yourself, you cannot be bleeding from there.
If you are still worried, take a shower, clean thoroughly in that area with soap and water, then put in a tampon. Most likely, you will not find you have blood in that area any more.
It is gross, but blood is a liquid and it runs along the vaginal "track" when you have a pad on instead of a tampon.
[This message has been edited by Katymom (edited 08-25-2003).]