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Seton and swimming: is it okay

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

At a glance

Swimming with a seton is a common question, and the answer is usually: it depends. Many people do swim with a seton in place, but the timing and approach matter. This guide covers the practical considerations based on what people commonly describe.

The general picture

Swimming is a low-impact exercise that many people with setons would like to continue. It does not put direct pressure on the perineum, and the buoyancy can actually make it more comfortable than land-based exercise.

However, swimming involves immersion in water that may contain bacteria (in natural water) or chemicals (in pools), and the seton area includes a wound that is still healing.

Pool swimming

Chlorinated pools are the lower-risk option. People describe:

  • Waiting until the initial post-placement soreness has settled (typically two to four weeks)
  • Getting clearance from their surgical team before starting
  • Swimming without significant issues in most cases
  • Mild stinging from chlorine that settles quickly
  • Showering immediately after and cleaning the seton area thoroughly

Open water

Natural water carries more risk due to bacteria. People describe being advised to:

  • Avoid open water swimming during the initial healing period
  • Check with their surgical team before returning to lakes, rivers, or sea
  • Be particularly cautious if there is active drainage from the fistula site
  • Shower thoroughly immediately after any open water exposure

Practical tips for swimming with a seton

  • Ask your surgical team first — guidance varies and your specific wound matters
  • Wait for the initial healing — swimming too soon after seton placement increases infection risk
  • Shower immediately after — rinse the seton area with clean water
  • Dry thoroughly — dampness around the seton promotes irritation
  • Monitor for problems — if you notice increased drainage, redness, or discomfort after swimming, pause and discuss with your team
  • Choose your swimwear — dark-coloured, comfortable swimwear that does not create excessive friction

When to avoid swimming

Do not swim if:

  • Your surgical team has specifically advised against it
  • The seton area is actively infected
  • You have significant open wounds that have not started to heal
  • You are experiencing increased pain or drainage

Common questions

Is it safe to swim with a seton?

Many people swim with a seton, though the advice varies between surgical teams. Some clinicians are happy for patients to swim once the initial wound has settled (usually two to four weeks after placement). Others prefer patients to avoid immersion in shared water. Ask your specific surgical team for their guidance.

Will chlorine affect the seton or wound?

Chlorinated pool water is generally considered low-risk for clean wounds. Some people describe mild stinging from the chlorine, but significant irritation is uncommon. The seton material itself is not affected by chlorine.

What about open water swimming?

Open water (sea, lakes, rivers) carries a higher risk of bacterial exposure than chlorinated pools. Most clinicians advise caution with open water swimming while a seton is in place, particularly if there is active drainage from the fistula site.

How do I manage hygiene after swimming with a seton?

Shower promptly after swimming, paying attention to cleaning the seton area gently with plain water. Pat dry thoroughly. If you use a pad or dressing, replace it with a clean one. Check the seton area for any signs of irritation.

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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