What causes an anal fistula?
What causes an anal fistula?
The leading causes of an anal fistula are clogged anal glands and anal abscesses. Other, much less common, conditions that can cause an anal fistula include:
- Crohn’s disease (an inflammatory disease of the intestine)
- Radiation (treatment for cancer)
- Trauma
- Sexually transmitted diseases
- Tuberculosis
- Diverticulitis (a disease in which small pouches form in the large intestine and become inflamed)
- Cancer