Can viral infection cause gastrointestinal fistula?

Very rare, not impos: This is very rare, but not impossible. Any source of trauma or chronic inflammation can cause a gastrointestinal fistula.

No.: Viral infection cannot cause gastrointestinal fistula, or an abnormal connection between the intestine and another structure (e.g. The skin). This is caused by surgery, inflammatory bowel disease, cancer, radiation, or a variety of other causes, but not from a virus.