Private Sinus Tract & Fistulae Excision

Sinus tract and fistula surgery is often an outpatient procedure, typically taking 30–90 minutes depending on the complexity and location (e.g., pilonidal, perianal, or abdominal). Expect to be at the clinic or surgical centre for several hours including intake and recovery.

1) Check-in and confirmation

• The surgeon confirms the site and reviews your symptoms.
• If you have recent imaging (MRI, ultrasound, or CT), they will review the "roadmap" of the tract.
• You’ll confirm the plan: simple excision, laying open the tract (fistulotomy), or placing a seton (a drainage loop) if muscles are involved.

2) Anaesthesia

• Local anesthetic: Used for small, superficial skin tracts away from sensitive areas.
• Sedation or General Anaesthesia: Very common for perianal, rectal, or deep pilonidal cases to ensure muscle relaxation and patient comfort.
• Spinal block: Sometimes used for lower body/rectal procedures.

3) Prep and sterile setup

• The area is cleaned with antiseptic.
• If the tract is near the rectum, you may be placed in a specific position (lithotomy or prone) to give the surgeon the best view.

4) Identifying and treating the tract

• The surgeon may use a probe or inject a harmless dye to map exactly where the tunnel goes.
• Excision: The entire tract and inflamed tissue are cut out.
• Fistulotomy: The tunnel is cut open so it becomes a flat groove that can heal from the bottom up.
• Seton placement: If the tract passes through important muscle (like the anal sphincter), a rubber loop (seton) might be placed to drain the infection safely over weeks, rather than cutting the muscle.

5) Closure (or lack thereof)

• Closed: Small, clean excisions may be stitched shut.
• Open (Healing by Secondary Intention): Many sinus tracts and fistulae are left open to heal from the inside out. This reduces the risk of the infection returning. You may have gauze packing inside the wound.

6) Same-day discharge

• You go home once the sedation wears off.
• You will leave with specific instructions on wound packing, sitz baths (soaking), and pain management.

Your exact recovery plan comes from your surgeon, but here’s the general idea. Recovery is often slower than a simple cyst removal because the wound is frequently left open to heal.

First few days

What it feels like

• Soreness and stinging, especially during dressing changes or bowel movements (if perianal).
• Drainage is expected—often blood-tinged or yellowish fluid on the dressing.
• Fatigue if you had general anesthesia.

Main goals

• Manage pain (often higher than cyst removal).
• Keep the area clean (sitz baths or shower rinses are key).
• Manage the packing if the wound was left open.

Typical instructions

• Take pain meds as prescribed.
• Sitz baths: Soaking the area in warm water 3–4 times a day (common for anal/rectal/pilonidal cases).
• Diet: High fibre/stool softeners to prevent straining.

Weeks 1–3

What it feels like

• Pain decreases, but the wound is still "active."
• Drainage continues but should become clearer and less bloody.
• Itching is common as new tissue forms.

Main goals

• Ensure the wound heals from the bottom up (not bridging over the top).
• Prevent new infection.
• Return to light work/activity.

Typical steps

• Regular wound checks to ensure it’s filling in correctly.
• Gradually return to walking and light daily tasks.
• If you have a seton: it remains in place, usually causing minor irritation but keeping the tract draining.

Weeks 4–8+

What it feels like

• The wound becomes smaller and shallower.
• Drainage significantly reduces.
• Stiffness or scar tissue starts to form.

Main goals

• Complete healing of the skin.
• Return to sports/gym (once the wound is fully closed).

Typical steps

• Final closure of the skin layer.
• Resume normal sitting/exercise habits.
• If a seton was placed, a second small procedure might be scheduled to remove it or tighten it.

Red flags anytime

Call your care team if you notice:

• Fever (>38°C) or chills.
• Sudden increase in pain or swelling (abscess returning).
• Loss of bowel control (if perianal surgery).
• Heavy bleeding that soaks through dressings rapidly.
• Foul-smelling pus (new infection).

Sinus tract and fistulae surgery is generally more expensive than simple cyst removal because it is technically more difficult, often requires an operating room setting (rather than a simple procedure room), and may involve general anesthesia.

In Canada

At private clinics, you can typically expect: $1,800 - $4,500+

Why the range?

• Simple Sinus Tract ($1,800 – $2,500): Superficial skin tract, local anesthetic, procedure room.
• Complex/Deep Fistula ($2,500 – $4,500+): Involves muscle or deeper tissue, requires sedation/general anesthesia, accredited surgical centre fees, and potentially longer surgical time.

In the United States

Typical range: CA$4,000 - CA$10,000+

Why does the price vary so much?

• Facility Fees: Using a hospital OR or Ambulatory Surgery Center (ASC) is significantly more expensive than an office setting.
• Anesthesia: Anesthesiologist fees for general anesthesia add $1,000+.
• Complexity: Anal fistulae requiring setons or flap repairs are complex operations.
• Geography: Major medical hubs (NY, LA, Boston) have higher rates.

What’s usually included

• Surgeon fee (procedure).
• Facility/OR fee.
• Local anesthetic / Sedation (if bundled).
• Post-op care kit (gauze, irrigation syringe).
• Initial follow-up visits.

What’s usually not included

• Pre-op Imaging: MRI or Ultrasound (often required for fistulae to map the tract) is usually extra.
• General Anesthesia: If an anesthesiologist is required, this is often billed separately.
• Prescription meds: Painkillers and antibiotics.
• Multiple stages: If you need a seton placement first and a repair later, these are usually billed as two separate procedures.

Insurance Note

In Canada, medically necessary sinus tract & fistulae excision care can be covered in the public system; private excision is typically out-of-pocket, though some extended plans may reimburse parts—ask for an itemized invoice.

Choosing your surgeon is one of the benefits of going private. Here’s how to choose wisely for sinus tract and fistulae surgery.

What to look for

Experience and volume (specific to the location)

• Ask how often they treat fistulae or sinus tracts specifically (not just general abscess drainage).
• Context matters: A pilonidal sinus (tailbone) is different from a perianal fistula (rectum) or an abdominal mesh sinus.
• If your fistula is complex, recurrent, high-up (near sphincter muscles), or associated with Crohn’s disease, ask if they have specific fellowship training (e.g., Colorectal Surgeon) or handle complex cases regularly.

Credentials and training

• Confirm they are licensed with the provincial college (CPSO, CPSBC, CPSA, etc.).
• Look for:
  • FRCSC General Surgeon with Colorectal focus (Best for perianal/rectal fistulas).
  • FRCSC General Surgeon (Common for pilonidal, abdominal, or soft-tissue tracts).
  • FRCSC Plastic Surgeon (Sometimes best for hidradenitis or complex skin-healing issues).

Diagnostic confidence (mapping the tract)

• Ask how they confirm the track's path:
  • Clinical exam with probing vs. MRI / Ultrasound / Fistulogram.
  • Crucial: Ask if they use imaging before surgery to ensure they don’t miss side-branches (a common cause of recurrence).
  • Confirm whether tissue will be sent to pathology (essential to rule out underlying causes like Crohn’s or rare malignancies).

Safety and outcomes

• Recurrence rate: Fistulas have higher recurrence rates than cysts. Ask what their rate is and how they minimize it.
• Continence risk: For perianal fistulas, ask specifically about the risk to the sphincter muscle and bowel control.
• Staged approach: Ask if they might use a seton (a temporary drain/loop) first, rather than cutting everything at once, to protect muscles.

Clinic standards and facility

• Sedation/Anaesthesia: Many fistula surgeries require deeper sedation or general anesthesia than a simple cyst. Ensure the facility is an accredited surgical centre (e.g., CAAASF, Accreditation Canada) with proper airway monitoring.
• Emergency plan: What is the protocol if you have bleeding or severe pain after hours?

Questions to bring to your consultation

About the surgeon and plan

• How many fistula excisions do you perform annually?
• Do you think this is a simple tract, or is it complex/branching?
• Do I need an MRI or ultrasound before the procedure?

Technique and Strategy

• Will you remove the tract (“fistulectomy”) or lay it open (“fistulotomy”)?
• Is there a chance I will wake up with a seton (loop) or drain in place?
• How do you protect the muscle function (if near the anus)?

Infection-specific questions

• If it is currently draining or has an abscess, should we drain it first and wait for it to calm down before excising?
• What is the plan if it abscesses again while I am waiting for the surgery date?

Recovery and costs

• What is included in the quote (MRI review, surgery, facility, pathology, follow-ups)?
• Does the quote cover a second stage if I need a seton removed later?
• When can I sit comfortably / drive / return to work?