Uh oh! I was cuddling with our baby this morning and noticed a small bump (size of a pencil eraser) on his back leg muscle. It seems to be under the skin and its pretty hard. It doesn't seem to bother him though. Are Boxers prone to any skin diseases? Is it something we should go to the Vet for? I don't want to be a over dramatic Mom, but I just want to make sure he is okay!