Hi! I've got a concern about one of the cats my grandma feeds. When I got to her house this afternoon to stay the weekend my favorite of her stray cats came to be fed. As I was feeding him I noticed he has a bad injury at the base of his tail. I'm posting a picture but it isn't a very good one so I'll describe his injury as best as I can. It looks like the base of his tail somehow got partially skinned and I can see bone. It is very deep and nasty looking. The strange thing is that he has no other wounds. I'm scared for him and don't know what to do. My question is that does anyone have any ideas how it could have happened and what did it? Is it possible that it could heal fine on its own if we can't get him to a vet? I love this cat and will be devastated if something happens to him.