My dog is pretty old.

She loves playing with her tennis ball though.

I looked at her tennis ball one time, and saw that it had blood on it, just a little bit.

I looked at her mouth, and there wasn't any blood.

Should I be worried? It's not too much blood and she really doesn't seem to have any pain.

Tell me your thoughts!

My dog actually died not to long ago. We can't figure out what went wrong but there was blood coming out of her backside. We took her to the vet, who said she would be fine, but guess what? She wasn't. She died the next day. We are still looking into the cause to see exactly what happened to her. If I were you I'd take her to a vet and have her checked out because you don't want a repeat of what happend to my dog. I mean it was almost as if she were paralyzed. She couldn't move or anything. She layed there all day wimpering and shuddering even though it was hot outside. So yes, I'd say have her checked out

Where is the blood coming from? ---For Legacy's dog