This article is for information purposes only; it is not a substitute for an examination and a physician’s assessment.
Surgery is the treatment for chronic fissures that have not responded to the cream and Botox steps. The gold standard is LIS (a millimetric, controlled release of the internal muscle ring); laser-assisted approaches and removal of the sentinel tag may accompany it. The procedure is same-day, and the success rate of fissure surgery is among the highest in all of proctology. The famous fear — gas incontinence — is rare and usually temporary in experienced hands. Return to desk work is generally 3-5 days; to physical work, 1-2 weeks.
Whenever I bring up surgery with a patient, I see the same expression: "Surely it's not that bad, doctor..." Yet the picture is usually this: six months of pain, three tubes of cream that didn't work, fear of the toilet, and a crumbling quality of life. Here is the little-known truth about fissure surgery: it is one of proctology's smallest yet most gratifying operations — a procedure measured in minutes permanently ends an ordeal measured in months for most patients. In this guide we'll walk the whole road, from the decision to the return to work.
When is the decision for surgery made?
In fissure disease, the road to the knife is a staircase, and I don't like skipping steps: first the lifestyle protocol, then prescription creams, then Botox if needed. Surgery comes onto the agenda in these situations: a chronic fissure that fails to heal despite properly applied cream therapy, recurrence after Botox, a wound "entrenched" with a prominent sentinel tag and fibrosis, and resistant cases where pain has wrecked quality of life. Let me add one more thing: lingering on the lower steps for months is no virtue either — in a clearly chronic, well-declared fissure, an early decision for surgery saves the patient months.
The methods: LIS and laser
LIS (lateral internal sphincterotomy) — the gold standard worldwide: the lowest fibers of the internal muscle ring are released from the side, in a millimetric and controlled fashion. The spasm resolves permanently; the wound — finally able to receive blood flow — closes on its own. The procedure takes 10-15 minutes. Laser-assisted approaches: in suitable cases, instead of cutting the muscle, they rely on relaxing it with laser energy and stimulating the wound bed; being incision-free and comfortable is their advantage (details in the laser article). In the same session, if present, the sentinel tag and the fibrotic wound edge are cleaned up. Which one is right for you? That is decided by examination, not slogans: muscle tone, the age of the wound, and your incontinence risk profile are weighed together.
The honest topic: the risk of gas incontinence
This is the internet's nightmare about fissure surgery, so let's speak plainly. In LIS, only the lowest fibers of the muscle are released, not the whole of it; the greater part of the continence system remains untouched. In experienced hands, a permanent problem is rare; most of the problems that do occur are temporary difficulty holding gas in the first weeks, which resolves on its own. Who is at higher risk? Patients with prior birth trauma, a weak muscle floor, advanced age, or previous anal surgery — which is exactly why, in these groups, we lean toward muscle-sparing plans (laser/Botox-weighted). Your personal version of this risk is the main agenda item of the pre-operative consultation; don't let it be glossed over.
Before surgery: the short list
Report all your medications, including blood thinners (stopping or bridging is the physician's decision); fast for 6-8 hours depending on the anesthesia type; shower on the morning of the procedure; bring a companion. That is the typical preparation for fissure surgery — bowel prep is either unnecessary in most cases or limited to a simple enema. Cut down on smoking at least during surgery week: nicotine is the enemy of wound blood supply.
Surgery day and the first week
The procedure is done under anesthesia; after a few hours of observation, you're home the same day. It may surprise you to hear that in most patients the soreness of the first days is milder than the fissure pain itself — with the spasm resolved, the main source of pain is already gone. The first bowel movement is feared but, with softener support, usually passes uneventfully. The daily routine: a warm sitz bath after every bowel movement, a small pad, paracetamol. Showering is allowed from the next day. A small amount of discharge or bleeding is normal in the first week.
Timeline for returning to work and life
| Activity | Typical time |
|---|---|
| Being up and about at home | Same day |
| Return to desk work | 3-5 days |
| Driving | Once painkillers are no longer needed (usually 3-4 days) |
| Physical work / heavy lifting | 1-2 weeks |
| Sports (other than walking) | 2-3 weeks |
| Full healing (wound closure) | 3-6 weeks |
Note: these times apply to LIS/laser and vary from person to person; in jobs requiring long sitting, an hourly stand-up break is a must in the first week. The personal answer to "how many days until I'm back at work?" is settled in the pre-operative consultation — most of my patients have the procedure on Monday and make it to Friday's shift.
Afterwards: keeping recurrence at the door
Surgery permanently solves the spasm problem — but if constipation returns, it can open a new wound. That is why the post-operative routine is non-negotiable: fiber + water + toilet discipline remain a lifelong habit. The good news: recurrence after surgery is the lowest of all the treatment steps. Details in the recurrence article.
Warning signs
Don't wait for your follow-up appointment with any of these: fever above 38°C, increasing pain (when it should be decreasing), heavy bleeding or clots, inability to urinate (rarely seen on the first day — report it), and foul-smelling discharge. A problem reported early is solved while it's still small.
Frequently asked questions
Is the surgery very painful?
My patients' standard comment is: "The surgical pain is nothing next to the fissure pain." Because the spasm is resolved, the procedure removes the very source of the pain.
What happens if it recurs?
Recurrence after surgery is rare; if it happens, the underlying cause is investigated first (constipation, Crohn's-like conditions), then the remaining options — LIS on the opposite side, laser, a flap — are considered. You will never be left without a road map.
Can I skip Botox and go straight to surgery?
You can — especially in a well-entrenched chronic fissure with a sentinel tag, that can even be the sensible choice. The steps are a guide, not dogma; the decision is personalized at examination.
Will I stay in hospital?
No — fissure surgery is a same-day procedure; after a few hours of observation, you go home.
Sources
- American Society of Colon and Rectal Surgeons (ASCRS) — Clinical Practice Guideline for Anal Fissures, fascrs.org
- Turkish Society of Colon and Rectal Surgery, tkrcd.org.tr
The solution to months of pain may be measured in minutes — let's assess it together: 444 8 623, Levent.
Content owner: Yasir Gozu, MD
Published: April 23, 2026
Last updated: July 8, 2026
