I too would like to know how to repair it medically. I have an r/v fistula caused by the surgeon who created my jpouch. I have since had over 40 surgeries to try and repair, but nothing has worked. I had surgery to use my omentun, rectus abdominal muscle, a complete redo, alloederm, the muscles in my vagina moved. And various tweak jobs. It's been 7 years and I am at my wits end. I lived with a seton for a year and no help. I don't have chrons and now they are trying to heal it medically. I don't know what to do. I am miserable. I can't have takedown until it's healed.