Anal Fistula Symptoms: How to Know When You Need a Fistula Specialist
An anal fistula is an abnormal tunnel that forms between the anal canal and the skin near the anus, usually after an infection or abscess. Unlike many anorectal complaints, a fistula almost never heals on its own — it needs a surgical solution. Recognising the symptoms early helps you avoid repeated infections and get the right treatment from a specialist sooner.
The main symptoms of an anal fistula
Discharge of pus or blood from a small opening in the skin near the anus — often the most telling sign.
Recurring anal abscesses that keep coming back in the same area, sometimes bursting and briefly settling before returning.
Persistent pain or swelling around the anus, which may worsen when sitting or during a bowel movement.
Irritation of the surrounding skin from constant moisture and discharge.
Fever or feeling generally unwell, which can accompany an active infection.
Abscess or fistula — what’s the difference?
The two are closely linked. An abscess is a collection of pus that causes sudden, intense pain and swelling; a fistula is the tunnel that can remain once the abscess drains. If an abscess keeps recurring in the same spot, a fistula is often the reason. Our guide on the difference between a perianal abscess and a fistula explains how they relate.
Why fistulas need specialist treatment
Because a fistula is a physical tract, creams and antibiotics may calm the infection but cannot close it. Surgery is the definitive treatment, and the right technique depends on how the tract runs in relation to the anal sphincter muscles. A specialist chooses between options such as fistulotomy, seton placement, LIFT and advancement flap to clear the fistula while protecting continence.
If you want to understand the procedure itself, our explainer on how anal fistula surgery works walks through what to expect, and the anal fistula recovery timeline covers healing after the operation.
When should you see a fistula doctor?
Any persistent discharge, a recurring lump or abscess, or ongoing pain near the anus should be assessed without delay — an untreated fistula tends to become more complex over time. Dr. Husain Gheewala is an experienced anal fistula surgeon in Mumbai who offers accurate diagnosis and minimally invasive, sphincter-preserving treatment. You can book a consultation to have your symptoms evaluated.
Frequently asked questions
Can an anal fistula heal without surgery? It is very unlikely. A fistula is an established tract, so it usually requires a surgical procedure to close it and prevent recurrence.
How do I know if it’s a fistula and not just piles? Fistulas typically cause discharge from an opening near the anus and recurring abscesses, whereas piles usually cause bleeding and a lump. An examination confirms the diagnosis.
Is fistula surgery safe for continence? Modern techniques are chosen specifically to treat the fistula while preserving the sphincter muscles and bowel control.