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
It usually occurs due to the infection of the anal gland. It is also occur in certain diseases like crohn’s disease and inflammatory bowel disease.
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.