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Wound healing by secondary intention

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

A composite account, drawn from many real anonymised experiences. It is not any one person's story.

Wound healing by secondary intention

What this experience covers

After many colorectal procedures — fistulotomy, abscess drainage, hemorrhoidectomy, fissurectomy — the wound is deliberately left open rather than stitched closed. This is called healing by secondary intention. The wound heals from the bottom up, gradually filling in with new tissue.

This experience covers what that process is actually like day to day — the timeline, the wound care, the emotions, and the practical challenges people describe.

The pattern

Why the wound is left open

People are often surprised to learn their wound will not be stitched closed. The reason is that closing wounds in the anal area carries a higher risk of infection — the area is difficult to keep sterile, and trapping bacteria inside a closed wound can lead to abscess formation. Leaving the wound open allows it to drain freely and heal cleanly from the inside.

Understanding this helps, but it does not fully prepare people for the reality of managing an open wound for weeks.

The timeline people describe

Healing by secondary intention is slow. This is the hardest part for most people to accept.

  • Week 1: The wound looks raw and may produce significant drainage. Pain is typically at its worst. Daily wound care is essential.
  • Weeks 2 to 4: Drainage gradually decreases. The wound bed starts to look healthier — pink granulation tissue forming. Pain reduces but is still present.
  • Weeks 4 to 8: The wound is visibly smaller. Many people describe a turning point around week four to six where they can see real progress. Drainage is minimal.
  • Weeks 8 to 12+: The final stages of healing. The wound may look nearly closed but take additional weeks to fully seal. Some people describe complete healing by eight weeks; others take three to four months.

The daily reality

The most honest accounts describe wound care as the defining feature of recovery. People describe:

  • Changing dressings or pads multiple times daily, especially in the first two weeks
  • Sitz baths after every bowel movement — essential for keeping the wound clean
  • Learning to look at and assess their own wound, which initially feels confronting
  • Gradually reducing wound care as healing progresses

What people wish they had known

The overwhelming theme: the timeline. People wish they had understood from the start that this would take weeks to months, not days. Knowing this would have reduced the anxiety and frustration that comes from expecting faster progress.

If something about your recovery does not feel right, or you just want reassurance about what is normal, our chat can help you think it through.

When to contact your doctor

Seek medical attention if you experience:

  • Increasing pain after an initial period of improvement
  • Wound drainage that becomes foul-smelling, thick, or changes colour
  • Fever or chills
  • Bleeding that is heavy or increasing
  • The wound appearing to get larger rather than smaller
  • Any signs of infection — increased redness, warmth, or swelling around the wound
When to seek care Heavy bleeding or feeling faint: emergency. Fever or trouble passing urine: call today. 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:

  • Severe or worsening pain
  • Heavy bleeding
  • Fever
  • Black stools
  • Fainting or dizziness
  • Pus or unusual discharge
  • Inability to pass stool or gas
  • Unexplained weight loss

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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Discreet symptom tracking

Had this surgery? Track your recovery, day by day.

The days blur together. Was the bleeding worse yesterday? When did the discharge change? A short, discreet email asks how things have been and saves each answer, so you can bring the dates to your follow-up visit or your doctor.

  • About ten seconds a check-in. No app, no password.
  • Nothing in the subject or preview says what it’s about.
  • Each Sunday, a link to your week, ready for your next appointment.

Your notes

Your check-in

Takes about ten seconds.

20:00
Example. Nothing on the lock screen hints at symptoms or conditions.

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