An Anal fistula is an infected tunnel that connects the skin to the anus. Primarily the Anal Fistuala means a muscular opening at the end of the tract. The majority of fistulas are due to an infection in an anal gland that extends to the skin. Pain, swelling, and the release of blood or pus from the rectum are all symptoms of Fistula. Laser Fistula Treatment is the most sort after option for this condition.