Anal fistula

Last Updated: 2019-08-27

Author(s): Anzengruber F., Navarini A.

ICD11: -

Epithelially lined fistulas located in the anal area.

Incomplete fistula duct: duct ends blind.

Complete fistula duct: duct ends in an organ (e.g. bladder or intestinal section)


Divided into parks:

  • Subcutaneous fistula
  • Submucosal fistula
  • Intersphincter fistula
  • Transphincter fistula
  • Suprasphincter Fistula
  • Extrasphincter Fistula
  • Rectoorganic fistula.

Fistula Patients often report secretion, incontinence, pruritus. Anal eczema can develop in the course of the disease.

Medical history

Clinical image


Bacterial superinfection

Periproctitic abscess

Very good after surgical therapy.