What is an Anal Fistula?
İt's an abnormal tunnel connecting the anal canal to the skin
surrounding the anus. It most commonly develops after an anal abscess when the
infection fails to heal completely.
Because
an anal fistula rarely heals on its own, surgical treatment is usually
required.
When
is Surgery Necessary?
Surgery is generally
recommended for patients who have:
• A confirmed anal fistula.
• Recurrent anal abscesses.
• Persistent drainage of pus
or fluid.
• Recurrent pain around the
anus.
• Failure of conservative
treatment.
The primary goal of surgery
is to eliminate the fistula while preserving normal anal sphincter function.
Symptoms
of an Anal Fistula
Common symptoms include:
• Pain around the anus.
• Persistent or recurrent
drainage of pus.
• Swelling and redness.
• Foul-smelling discharge.
• Skin irritation around the
anus.
• Recurrent anal abscesses.
Causes
and Risk Factors
Common causes include:
• Anal abscess.
• Infection of the anal
glands.
• Crohn's disease.
• Previous anal surgery or
trauma.
• Radiation therapy in some
cases.
How
is An Anal Fistula Diagnosed?
Diagnosis is based on:
• Medical history.
• Physical examination.
• Rectal examination.
• Magnetic Resonance Imaging (MRI) for complex fistulas.
• Endoanal ultrasound in selected cases.
How
is Surgery Performed?
The
procedure is usually performed under general
or spinal anesthesia.
The
colorectal surgeon selects the most appropriate surgical technique based on the
fistula's anatomy while aiming to remove or close the fistula tract and
preserve the anal sphincter muscles to minimize the risk of fecal incontinence.
Types
of Surgery
Several surgical techniques
may be used, including:
• Fistulotomy
• Seton Placement
• LIFT (Ligation of Intersphincteric Fistula Tract)
• Advancement Flap Repair
• FiLaC (Fistula Laser Closure) in selected patients.
The most suitable procedure
is chosen according to the fistula type, complexity, and the surgeon's clinical
assessment.
Recovery
After Surgery
Most patients recover within
several weeks.
Following surgery, patients
are advised to:
• Keep the area clean.
• Take warm sitz baths regularly.
• Take prescribed
medications.
• Prevent constipation.
• Follow a high-fiber diet.
• Attend scheduled follow-up
appointments.
Why is
Early Treatment Important?
Early treatment helps prevent
recurrent abscesses, limits the spread of infection, preserves anal sphincter
function, and reduces the risk of fistula recurrence.
A
Message to Patients
If
you experience persistent pain, recurrent abscesses, or continuous drainage
around the anus, do not ignore these symptoms. Early diagnosis and treatment by
an experienced colorectal surgeon can provide the best chance of complete
healing while preserving normal bowel control.
Frequently
Asked Questions
Can
an anal fistula heal without surgery?
In most cases, no. Anal
fistulas usually require surgical treatment because they rarely heal
spontaneously.
Can
the fistula come back after surgery?
Recurrence is possible,
particularly in complex fistulas. However, selecting the appropriate surgical
technique significantly reduces this risk.
Will
surgery affect bowel control?
Modern sphincter-preserving
techniques are designed to protect continence. When performed by an experienced
colorectal surgeon, the risk of fecal incontinence is generally low.
How
long does recovery take?
Most patients can return to
normal daily activities within 1–3 weeks,
although complete healing may take several additional weeks depending on the
type and complexity of the fistula.