An anal fistula is an infected passageway between the skin and the anus, the muscular aperture at the end of the digestive tract. Anal fistulas most frequently develop as a result of an infection of the anal glands that extends to the skin. Symptoms include discomfort, edoema, and blood and pus coming from the anus. Surgery is typically used to repair anal fistulas. Our Doctor Kapil Dev known as Best laser fistula treatment doctor in New Delhi.If you have an anal fistula, you should see a proctologist or a colorectal surgeon. Due to the abscess and infection, the fistula does not heal on its own and may spread and lead to additional issues.