My two and a half year old labrador has a an elevated, reddish inflamation on his prepuce, but not on his penis. There has not been any discharge or bleeding. We have had him for about 10 months and he is a rescued dog. He has been neutered for at least a year, possibly longer, as far as we know.

I have never known my dog to have ever had an amorous encounter or what this could possibly be. Anyone have this experience or any clues as to what this could be?

Thanks