Bentley just got neutered today and just below where the stitches are is really red and bruised, is this normal, it looks like a huge blood blister the size of a golf ball, is that just the sac. He is nearly 7 months old. The poor little guy is here on my lap just shaking, but doing not too bad...he had a bunch of teeth removed and a tattoo so he has been kind of through it today, so we are having a nice cuddle, lol.