What is Fistula?
Fistula is a small tunnel connected by an infected gland inside the anus to skin opening around the anus. Pain and swelling around the anus are symptom of fistula.
What causes Fistula?
Clogged anal glands and anal abscesses are the causes of fistula.
How is Fistula treated?
Surgery is always required to treat fistula.