There are many types of hernias seen in dogs and most of them probably would not be a good explanation for the blood in her stools. You should have a thorough examination of her by your veterinarian.
of gum disease:
1) Make sure to keep your toothbrushes away from the toilet area of your bathroom -
2...) You may want to use Closys mouth rinse before you brush your teeth. Closys gets to work on gum disease...