I am really sorry I don't remember the size but it was at the point where it was recommended to bypass. So I had the surgery. Knowing what I know now, and understanding that my artery ectasia has been stable for over 15 years I would not do it again. I would do surveillance to establish whether it was enlarging or not before I did surgery. I am five years past surgery and I still have neuropathy in my leg but improving. Do your own research and investigate the average lifespan of a bypass. I kept reading it was the gold standard. The way it was discovered was I that I was having many clots in my legs and I thought that was what was happening behind my knee. That was how it was found.