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Three months after LIS surgery

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

At a glance

Three to four months after lateral internal sphincterotomy (LIS), most people are well into recovery but not necessarily at the finish line. The acute pain of the first weeks is long gone, daily function has returned, and life is largely normal. But this stage has its own character — a mix of ongoing healing, lingering vigilance, and the process of rebuilding confidence.

This guide covers what people commonly describe at the three-month mark after LIS.

Where most people are at three months

The good news

By three months, the majority of people who have had LIS describe:

  • The fissure pain is gone — the tearing, burning, spasming pain that defined their life for months has either resolved completely or reduced to something minimal
  • Bowel movements are manageable — no longer a source of dread
  • Normal activities have resumed — work, exercise, socialising, sitting through a film
  • The constant preoccupation with the area has eased — there are hours or days without thinking about it

What may still be present

Not everything is fully resolved at three months. People commonly describe:

  • Occasional twinges or sensitivity at the surgical site, particularly with harder stools
  • Mild gas control changes — passing gas more easily than before, or with less warning
  • A sense of the area being different — not painful, but not quite the same as before surgery
  • Intermittent worry about recurrence when any sensation occurs in the area

The emotional landscape at three months

Relief with a caveat

The dominant emotion at this stage is relief — genuine, accumulated relief from months of suffering that has now resolved. But it rarely feels uncomplicated. People describe:

  • Vigilance — monitoring every bowel movement for signs that something is wrong
  • Anxiety spikes — a slightly harder stool or a twinge can trigger fear of recurrence
  • Gratitude — for the surgery, for their surgeon, for the end of the pain cycle
  • Frustration — if any symptoms persist, however mild, there is impatience for full resolution

The comparison trap

People at this stage often compare themselves to recovery accounts they read online. Some people describe being completely fine at six weeks; others are still adjusting at four months. The variation is real and does not indicate a problem. Your recovery runs on its own timeline.

Stool management at three months

This remains important even though the acute phase is over:

  • Fibre and water — these should be permanent habits, not just recovery measures
  • Stool softeners — many people are still taking them at three months, gradually tapering under medical guidance
  • Avoiding constipation — a hard bowel movement at this stage can cause a setback scare, even if it does not actually re-injure the area

The transition from “recovery diet” to “maintenance diet” happens gradually. The goal is to make high fibre and good hydration feel normal rather than medical.

Activity and exercise

By three months, most activity restrictions have lifted:

  • Walking, cycling, swimming — usually resumed well before this point
  • Gym and strength training — most people have returned, sometimes with initial caution about heavy lifting
  • Sitting for long periods — generally comfortable by now
  • Sexual activity — most people have resumed, though some describe ongoing caution

The guidance is usually to let comfort be your guide rather than following strict rules at this stage.

When to follow up with your surgeon

Most people have had at least one follow-up by three months. Reasons to schedule another:

  • Symptoms that are not improving or have plateaued at a level that concerns you
  • Any new symptoms — bleeding, increased pain, continence changes
  • Questions about when to stop stool softeners or other treatments
  • General reassurance — if you are worried, a check-up is reasonable

The longer view

The three-month mark is significant because most of the healing has happened, but it is not the end of the story. People describe continued subtle improvement over the next three to nine months:

  • The surgical site continues to settle and remodel
  • Gas control issues, if present, typically improve
  • The vigilance and anxiety gradually reduce as time passes without problems
  • Confidence in bowel movements rebuilds steadily

By six to twelve months, most people describe feeling genuinely past it — the fissure and the surgery are part of their history rather than their present. Getting there from the three-month mark is usually a matter of time and continued basic care rather than any specific intervention.

Common questions

Should I still be having symptoms three months after LIS?

Some people are completely healed by three months. Others still have mild, intermittent symptoms — occasional discomfort, sensitivity around the surgical site, or the odd twinge during a harder bowel movement. As long as the overall trend has been improvement, this is within the range of normal. If you have ongoing or worsening symptoms, a follow-up with your surgeon is worthwhile.

Is it normal to still worry about a recurrence at this stage?

Very normal. Many people describe being hypervigilant about any sensation in the area for months after surgery. A slightly uncomfortable bowel movement can trigger anxiety about the fissure returning. This vigilance tends to ease over time as you accumulate more positive experiences.

Can I stop stool softeners at three months?

This depends on your specific situation. Many people gradually reduce stool softeners around this time, but continuing good fibre and water intake is recommended long-term. Discuss with your doctor before stopping — a gradual taper is usually better than stopping abruptly.

When is LIS recovery truly complete?

Most surgeons consider the healing complete at around three to six months, though some people describe ongoing subtle changes for up to a year. The surgical site remodels over time, and the sphincter adjusts to its new state. The timeline is individual.

Is it normal to have occasional gas control issues months after LIS?

Some people describe minor changes in gas control that persist for a few months after LIS. For most, this improves with time. If you have concerns about continence — particularly any difficulty controlling stool rather than just gas — discuss this with your surgeon.

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:

  • Heavy or persistent bleeding that does not settle
  • Severe pain that is getting worse rather than better
  • Fever or signs of infection
  • Symptoms that have not improved after 4 to 6 weeks of self-care

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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