How much does anal fissure and fistula surgery cost privately in the UK? (2026)

Private surgery for an anal fissure or fistula treats a tear in the anal lining that will not heal, or an abnormal tunnel between the bowel and the skin, usually after creams, injections or drainage have been tried.

We did not find a reliable published price list for anal fissure and fistula surgery, so this guide gives no pounds-and-pence figure. Prices vary widely between hospitals and clinicians, and any number quoted without a named source should be treated with caution.

Fissure surgery may release part of the sphincter muscle to reduce spasm, while fistula surgery may place a seton thread to drain the tract or lay it open if it is simple. You go home the same day.

Ask what staging is likely and how repeat procedures would be priced, because that is where the total cost can differ from the first quote.

Most acute fissures heal with fibre, fluids and topical treatments that relax the sphincter, and botulinum toxin can help chronic ones before surgery. Fistulas, by contrast, rarely heal by themselves and are managed according to how much sphincter muscle they cross.

Because a fistula often follows an abscess, a specialist usually plans surgery around imaging so that continence is protected. Asking about the risk to bowel control and how staged surgery would be priced helps you understand the total cost.

The headline figure hides several moving parts. In the case of anal fissure and fistula surgery, the following tend to decide where a quote lands.

• Which condition and technique: a fissure may be treated with botulinum toxin or a sphincterotomy, whereas a fistula may need a seton, a plug or a flap, with very different complexity.

• Complex fistulas: those that cross the sphincter muscle often need staged surgery and MRI planning.

• Anaesthetic and theatre time.

• MRI or ultrasound planning scans.

• Specialist colorectal surgeon fee and follow-up dressings.

A fixed price is only as useful as its small print. Here is how the common items tend to divide between included and extra.

Insurers normally cover treatment for fissures and fistulas on specialist referral, with authorisation for staged care.

Insured patients should confirm the benefit limit, the excess and whether the consultant is on the insurer list. Self-funders can compare a fixed package price against an itemised estimate, and ask whether credit is available.

NHS colorectal teams treat fissures and fistulas, with simple treatments first and surgery in selected people.

If you are weighing private against NHS care, remember that NHS referral gives you a right to choose a provider in England and an 18-week standard for non-urgent treatment. Check current waits in your area before deciding.

Recovery ranges from days after fissure treatment to weeks after fistula surgery, with sitz baths, fibre and dressing care.

Ask your provider to explain, in writing if possible, what is covered if the course of care changes.

• Fistula surgery balances cure against the risk of weakening bowel control, and surgery can be staged, so total cost may exceed a single operation quote.

• Pain, swelling or fever near the anus may signal an abscess, which needs prompt assessment.

Ask each provider for an itemised written estimate, then put them side by side. These questions are specific to this procedure.

• Which procedure is quoted and is staging likely?

• Is MRI planning needed?

• How is any second operation priced?

• What aftercare is included?

• Is the consultant fee, anaesthetist fee and hospital fee shown separately, and are any of them estimated rather than fixed?