What is Fistula?

A small channel with its internal opening in the anal canal and its external opening in the skin near the anus is anal fistula. An infection near the anus causing abscess in the nearby tissue, Crohn’s disease, diverticulitis, infections from Tuberculosis (TB) can be reasons of anal fistula.


  • Skin irritation
  • Swelling and redness around anus
  • Bowel incontinence
  • High fever
  • Constant pain that may be worse when you sit down, move around, have a bowel movement or cough etc


  • Fistulectomy is a common mode of surgery in which fistula tract is cut out to cure the disease.
  • VAAFT or Video Assisted Anal Fistula Treatment is used for healing of intricate fistulas and their reappearances. This technique comprises two phases: a diagnostic one and an operative one. The advantages of VAAFT treatment are-
    • No surgical wounds
    • Complete certainty in the localization of the internal fistula opening
    • Complete destruction of fistula from the inside
    • No damage is caused to the anal sphincters
    • Risk of postoperative fecal incontinence is excluded