Fecal Microbial Transplantation for the Treatment of Fecal Incontinence in Women

Inclusion Criteria: * Women 50 years of age and older with self-reported fecal incontinence defined as: * Uncontrolled bothersome loss of liquid or solid fecal material that occurs at least weekly over the last 3 months and * Failure of response to conservative management using fiber, diet modification, supervised pelvic floor exercises * Baseline St. Mark's score of greater than or equal to 12 * Intolerance, unwillingness or inadequate response to constipating medications * Self-reported current negative colon cancer screening based on the 2016 US preventive Services Task Force recommendation (applies to participants age 50-75). N/A if participant is over 75 * Able and willing to sign the informed consent form and agree with study procedures Exclusion Criteria: * Known food allergy that could lead to anaphylaxis * Contraindications to naso-gastric tube placement including: * Recent mid-face trauma * History basilar skull fracture * Recent ENT surgery * Known coagulation abnormalities * Esophageal varices and/or esophageal strictures * Untreated prolapse beyond the hymen * History of Inflammatory Bowel Disease (does not include IBS) * Unrepaired rectovaginal fistula/chronic 4th degree laceration * Full thickness rectal prolapse * History of congenital anorectal malformation * History of bowel resection surgery for any indication * Minor anal procedures within 6 months for treatment of accidental bowel leakage (ABL) (injection of bulking agent or radiofrequency energy) or ligation of hemorrhoids * Prior pelvic or abdominal radiation * Diagnosis of cancer of the descending colon or anus