My Moms Dog Needs Your Help

  
King Arthur

1137544
 
 
Barked: Thu Jun 17, '10 11:30pm PST 
My moms dog is a un-fixed male Great Dane and is 7years old and is bleeding from his penis we are taking him to the vet tomorrow but I just want to find out what it could be to help my mom calm down some anything you can think of would be great thanks so much.
Odin, SDIT

1135107
 
 
Barked: Wed Jun 30, '10 6:31am PST 
What ended up to be the cause?