Written and medically reviewed by: Assoc. Prof. Cengiz Dibekoğlu, MD, General SurgeryLast updated:
Anal Fistula — Abscess and Fistula Link
Infection first, tunnel second
Most anal fistulas begin with a perianal abscess—painful swelling that may drain spontaneously or surgically. If the track does not heal, a fistula persists. Not every abscess becomes a fistula, but repeat abscess at one site is a major warning sign.
Educational schematic. Some structures may be simplified or emphasized for clarity; not an exact anatomical depiction.
© Cengiz Dibekoğlu — illustrative; not for unauthorized use
Figure summary
This educational figure shows: Abscess · fistula pathway.
Key points
- Key note inside
Step 1: Abscess
Gland infection → pus pocket with throbbing pain, redness, sometimes fever. Treatment is drainage—not antibiotics alone.
Step 2: Fistula
If a channel remains between the internal opening and skin, discharge continues or the abscess refills.
When both are managed together
Drainage is urgent; a loose seton may be placed. Definitive closure (LIFT, flap, laser…) usually waits until sepsis is controlled.
- Key note inside
Recurrent abscess meaning
Repeat swelling means map the track (exam ± MRI) rather than repeat antibiotics only.
More chapters in this hub
Diagnosis & anatomy
Simple fistula
Complex fistula
Seton
LIFT / flap
Crohn
Newer sphincter-preserving techniques
Recovery / recurrence / continence
Appointment / info
This page is for education. It is not medical advice and does not replace a visit with your physician.
Medical editor: Assoc. Prof. Cengiz Dibekoğlu, MD · Last medically reviewed: August 2026 · English patient-education chapter.