Fistula: An abnormal passageway in the body. The fistula may go from the body surface into a blindpouch or into an internal organ or go between two internal organs.
There are numerous types of fistulas or (if you like the proper Latin plural) fistula. They are usually designated by the organs or parts they connect (anovaginal, bronchoesophageal, etc.).
Quick GuideDigestive Disorders: Common Misconceptions
Subscribe to MedicineNet's General Health Newsletter
Digestive Disorders Resources
Last Editorial Review: 6/9/2016