Deefer was castrated in Feb 2012. He was glued in the important areas and then had some stitches which were "dissolvable". So far I have had the pleasure of removing five knots which have come to the surface in a straight line. Today I caught Deefer "scootin" not his back end but his empty sac area and this now looks red! He was a bit sore so have given him some anti-inflammatory, but was just wondering whether anyone else had the same experience or any advice to offer. Will of course take him to the vets after the weekend if still an issue, but and this is the bit which may hold too much detail.... but the empty sacs were black in colour prior to surgery and now look quite pink! Must be too long ago to be an infection, but any ideas greatly apprecitated!