Fistula

特許 係属中 The Latin word fistula (UK /ˈfɪstjʊlə/ or US /ˈfɪstʃələ/ or /ˈfɪʃtʃələ/,[1][2] plural fistulas /...ləz/ or fistulae /...li/ or /...laɪ/) literally means tube or pipe. In medicine, a fistula is an abnormal connection between two epithelialized surfaces. Fistulas are usually caused by injury or surgery, but they can also result from an infection or inflammation.[3] Fistulas are generally a disease condition, but they may be surgically created for therapeutic reasons.