FMT for Postop Crohn's Disease

People with Crohn's disease often need surgery. The gut bacteria of people with Crohn's is associated with Crohn's disease coming back after surgery. Fecal microbiota transplant (FMT) after surgery might be a way to prevent Crohn's disease from coming back after surgery. This study aims to determine if fecal microbiota transplant (FMT) taken by capsules results in the same amount of good bacteria in the guts as FMT by colonoscopy in people with Crohn's disease who have had surgery. Participants will be randomized to get FMT by capsules or colonoscopy. Colonoscopy with biopsies 8-weeks after the FMT will be used to assess the good bacteria in the gut.