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Seton removal: what happens next

Published 13 March 2026 ·Last reviewed 13 March 2026 by the editorial team ·How we create our content

At a glance

Seton removal is a milestone in fistula treatment — but it is important to understand that removal is usually part of a staged plan, not the end of treatment in itself. This guide covers what people describe about the removal process, what happens to the fistula afterwards, and what to expect.

The removal procedure

Seton removal is typically quick and performed in a clinic or as part of a planned surgical procedure:

  • The area is cleaned
  • The seton is cut and pulled through the tract
  • The whole process takes seconds to a minute
  • Local anaesthesia may be used but is not always needed

People describe the removal as:

  • Quick — faster than expected
  • Brief discomfort — a sting or pulling sensation that is over quickly
  • Relief — many people describe immediate relief at no longer having the seton in place
  • Anxiety beforehand — as with most procedures in this area, the worry is often worse than the experience

After removal

What happens next depends on the treatment plan:

If the fistula has healed

In some cases, the seton has allowed the fistula to heal during the months it was in place. After removal, the seton tract closes on its own and no further treatment is needed. This is the ideal outcome, though it does not happen for everyone.

Signs of a healed fistula after seton removal include:

  • The tract closing within a few days
  • No recurrence of drainage
  • No abscess formation
  • Comfort returning to normal

If further surgery is planned

More commonly, seton removal is combined with or followed by a definitive procedure — fistulotomy, LIFT procedure, advancement flap, or another approach. The seton period allowed the infection to settle and the tract to mature, making the definitive procedure safer and more effective.

If the fistula recurs

In some cases, the fistula returns after seton removal — with drainage, swelling, or abscess formation recurring. This is frustrating but not uncommon, and it means further treatment is needed.

Life after the seton

People describe the period immediately after seton removal as surprisingly liberating:

  • No more seton to clean around
  • No more drainage management
  • Improved comfort during exercise and daily activities
  • A sense of progress in their treatment journey

The adjustment to not having the seton is usually quick and positive. For people who had the seton for months, its absence is immediately noticeable and welcome.

What to watch for

After seton removal, monitor for:

  • Recurrence of drainage or discharge from the fistula site
  • Swelling or pain that could indicate abscess formation
  • Fever or signs of infection
  • Any symptoms similar to those that led to the seton being placed

Early reporting of recurrent symptoms allows for prompt reassessment and treatment.

Common questions

Does seton removal hurt?

Most people describe seton removal as quick and uncomfortable rather than truly painful. The seton is cut and pulled through the tract, which takes seconds. There is often a brief sting or pulling sensation. Many people describe the anticipation as worse than the actual removal.

What happens to the fistula after the seton is removed?

What happens next depends on why the seton was placed and the condition of the fistula tract. In some cases, the seton has done its job — the tract has matured and can be addressed with a definitive procedure (fistulotomy, LIFT, flap). In other cases, the fistula may have healed while the seton was in place and no further surgery is needed. Your surgeon will assess and discuss the next steps.

Will the fistula come back after seton removal?

Seton removal alone does not treat the fistula — the seton is a management tool that allows drainage and prevents abscess formation while a treatment plan is developed. If the underlying fistula has not been definitively addressed, there is a risk of recurrence. This is why seton removal is usually part of a staged treatment plan.

How long does recovery take after seton removal?

If the seton is simply removed without an additional procedure, the seton tract typically closes within a few days to two weeks. There may be mild drainage for a short period. If the seton removal is combined with a definitive procedure (like fistulotomy), the recovery follows that procedure's timeline.

When to seek care Heavy bleeding or feeling faint? Get emergency help now. Emergency: 911

Not sure how urgent it is? Get help today.

  1. Emergency

    Heavy bleeding, black tarry stools, feeling faint, severe pain or trouble breathing.

    Call 911 or go to the ER.

  2. Today

    Fever, pain getting worse, a hot swollen lump, or trouble passing urine.

    Call your doctor or go to urgent care.

  3. Soon

    Bleeding or bowel changes nobody has checked, or anything lasting 3 weeks.

    Book a doctor’s appointment.

Feeling overwhelmed? Call or text 988, any time.

See all the signs

For this topic, get medical advice if you notice:

  • Increasing pain, swelling, or redness near the anus
  • Fever or chills
  • Pus or foul-smelling discharge
  • New or worsening symptoms after surgery

Recording how you feel is not the same as being checked. These are the signs that need a doctor’s attention.

Call 911 or go to the emergency room now if you have:

  • bleeding that will not stop, a lot of blood (the toilet water turns red, or you pass large clots), or any bleeding with feeling faint or dizzy
  • fainting, a racing heart or trouble breathing
  • confusion or slurred speech, extreme shivering, no urine in a day, or blotchy skin
  • sudden severe belly pain, or a swollen, hard belly with vomiting or not passing stool or gas
  • you cannot pass urine at all, or your bladder feels full and painful and you can’t empty it
  • redness, swelling or severe pain spreading quickly around your anus, genitals or groin, especially with a fever or feeling very ill
  • a fever with a painful swelling near your anus if you have diabetes or a weakened immune system (for example, from chemotherapy or transplant medicines)
  • black, tarry stools

Call your doctor or go to urgent care today (or the ER if you can’t be seen today) if you have:

  • a temperature of 100.4°F (38°C) or higher, chills, vomiting, or feeling generally unwell
  • pain that is getting worse over days, or severe pain that stops you sitting or sleeping
  • a hot, swollen or very tender lump near your anus or at the top of the crease between your buttocks, or foul-smelling discharge
  • trouble urinating
  • bleeding that is getting heavier or more frequent, or blood mixed into your stool
  • feeling much more tired than usual, looking pale, or getting out of breath more easily than you used to
  • not passing stool for several days, or new belly pain

Make an appointment with your doctor if:

  • you have never had these symptoms checked by a doctor or nurse — whatever your age
  • you have had rectal bleeding for more than 3 weeks
  • your bowel movements have been looser, thinner or more frequent than usual for 3 weeks or more, or you have lost weight without trying
  • symptoms have not settled after a week or so, or keep coming back
  • you notice a new lump near your anus, between your buttocks or in your belly, or an itch or discharge that does not clear
  • you have new leakage or trouble controlling your bowels
  • you are 45 or over, or have a family history of bowel cancer or inflammatory bowel disease, and any of these symptoms are new for you

If you are unsure, it is always reasonable to ask. If things feel overwhelming, call or text 988 (Suicide & Crisis Lifeline) or chat at 988lifeline.org, any time. If you don’t feel safe, call 911.

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