I had a double fusion June 29, 2010, and had a bone stimulator implanted. I was having allot of problems with pain from the stimulator, so my surgeon removed it December 14th. Everything was normal after the removal, except that about 3 days later a huge lump appeared right around the incision area. Went to my surgeon yesterday to have him look at it, and he's not sure what it is. It's gotten a little bigger (over the size of a half dollar) and it's very painful, especially when I lay back against it or try to lay on my back (which I gave up trying to do). It also "burns" so bad when I accidentally sit for a period of time that I'm in tears just trying to get up. There is no drainage, so my Dr. doesn't think infection. He wants to keep an eye on it, and see me back in 2 weeks. Anyone have an idea what may be causing this? Along with my regular back pain from my fusion I'm getting very discouraged.