Techniques in Coloproctology talks to Damián Garcia-Olmo, pioneer of stem cell treatment for anal fistula, about the latest developments in this cutting-edge treatment. Professor Garcia-Olmo discusses how the stem cell treatment works, its different indications and successes in Crohn's disease and cryptoglandular fistula, use in anorecto-vaginal fistula, using stem cells and fibrin glue together, compares autologous and allogeneic stem cells and the use of near-patient stem cell kits. He then looks into the future and his aspiration that stem cells replace surgery in fistulas in Crohn's disease. This was recorded at the International Conference on Anal Fistula in Rome 2018, which you can hear going on loudly in the background!