Yeah, I'm guessing that it's a suture(s). I kinda freaked out when I saw Hot Rods. I could see it move whenever his little moved. It was poking out like what a needle would look like under the skin. He had his 4 week check up at that time and surgeon never even commented on it and I forgot to ask, so it wasn't anything he was worried about and obviously I wasn't as I forgot to ask. Moose is a trooper! Give him a big hug and kisses from us.