Hi, Newbie to the forum. Had RNY 7th May, 2 weeks post op I went to see surgeon due to a reddening of my incision (long incision open bypass) He said I had fluid behind it and incisied it. Long story short, it had so much fluid behind it, I now have a negative pressure vaccuum pump attatched for up to 3 months. No infection, just my body over reacted. So annoyed