Most fistulas will close on their own after a period of weeks to months. Depending on the clinical situation, patients may require IV nutrition and a period of time without food to allow the fistula time to close. In some cases, surgery is necessary to remove the segment of intestine if the fistula is not healing.
The prognosis depends on the cause and severity of the fistula and the overall condition of the patient. In most cases, the prognosis is excellent in an otherwise healthy patient.
Fistulas may result in malnutrition and dehydration, depending on their location in the intestine. They may also be a source of skin problems and infection.
Call your health care provider if you have a significant change in bowel habits, especially severe diarrhea. If you have any leakage of fluid that seems to come from the intestines or stomach, or from anywhere on the skin, especially if you have recently had abdominal surgery, call your provider.