The research area of fecal microbiota transplantation (FMT) involves transferring fecal material from a healthy donor into the gastrointestinal tract of a patient to restore the balance of beneficial bacteria in their gut microbiome. FMT is primarily used as a treatment for recurrent Clostridium difficile infections, but is also being studied for its potential therapeutic applications in other gastrointestinal disorders, autoimmune diseases, and even neurological conditions. Studies have shown promising results in improving symptoms and outcomes in various conditions, making fecal microbiota transplantation an area of interest and ongoing research in the field of microbiome science.