It is an abnormal opening made between the skin and the muscular layer of the anal canal.
Signs and symptoms include:
- Difficulty in defecation
- Skin tag near the anal opening
Your doctor diagnose the anal fistula by performing following tests:
- Physical examination of anal canal
- Flexible endoscopy to see the condition of anal opening
- Ultrasound to see the extent of disease
Aim of the treatment is to treat the infection first which causes the fistula. Antibiotics are the first-line treatment of anal fistula.