Fecal microbiota transplant (FMT), also known as a stool transplant,[2] is the process of transferring fecal bacteria and other microbes from a healthy individual into another individual. FMT is an effective treatment for Clostridioides difficile infection (CDI).[3][4][5] For recurrent CDI, FMT is more effective than vancomycin alone, and may improve the outcome after the first index infection.[3][5][6]