My little boy Rocky had one on his back and when I had him neutered, I just said, remove it, and clean his teeth while at it. It wasn't anything that Had to be removed, but I felt it on his back when I would pet him, so while he was under I had it all done at the same time. He's fine now, and you can barely tell there was anything there.
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My 6 Loves

Sassy, Gracie, Rosie, Rocky.....

Raindrop, and Candy