If you have an active dog, you have probably noticed every now and then he gets an inexplicable scratch. These scratches could come from other animals, potentially your pet cat, or from just playing around outside and running near twigs, sticks, bushes, trees, and even fences. Some scratches bleed but often not profusely enough for you to notice something has occurred. Most scratches will clear up on their own without ever even being noticed. However, if you do notice a scratch on your dog, it's always a good idea to clean it and treat it to ensure it doesn't become infected.
Your dog may not notice he even has a scratch. And on the other hand, some scratches he will notice because they are tender to the touch or because he's been attacked by a cat or another animal.