Anal Fissure Treatment (Laser & Sphincterotomy)
A fissure is a small tear — but the pain it causes is anything but small. Our proctologists treat acute fissures with medication and diet correction, and chronic ones with laser-assisted lateral internal sphincterotomy: a 20-minute daycare procedure that finally breaks the spasm–pain–spasm cycle. Cashless insurance, no-cost EMI and a coordinator who stays with you throughout.
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What is Fissure?
An anal fissure is a small tear in the lining of the anal canal. It sounds minor, and anatomically it is — but the anal canal is densely supplied with nerve endings, so even a tiny tear can produce pain far out of proportion to its size. Most patients describe it as a sharp, cutting or tearing sensation while passing stool, often followed by a deep burning ache that lingers for minutes or hours afterwards.
Most fissures form in the posterior midline of the anus. That location matters: blood supply is relatively poor there, which is precisely why fissures in that spot are slow to heal on their own.
Fissures are classified by how long they have been present. An acute fissure is a fresh tear that usually heals within a few weeks with stool softeners, a high-fibre diet and topical medication. A chronic fissure is one that has persisted beyond six to eight weeks; it often develops a small skin tag at its outer edge — the sentinel pile — and exposed muscle fibres can be seen at its base.
What turns an acute fissure into a chronic one is a vicious cycle. The tear hurts, so the internal anal sphincter goes into spasm. That spasm squeezes shut the very blood vessels that would deliver healing to the wound. Less blood means slower healing, the tear stays open, the next bowel movement reopens it, and the pain triggers more spasm. Breaking that cycle — not just treating the tear — is the whole point of fissure treatment.
This is also why chronic fissures rarely respond to creams alone, and why a lateral internal sphincterotomy, which releases a small, controlled portion of the internal sphincter, has such a high success rate. It relaxes the muscle just enough to restore blood flow, and the fissure heals on its own.
One important caution: fissures and piles produce overlapping symptoms, and so do more serious conditions. Pain plus bleeding should always be examined rather than self-diagnosed — particularly if a fissure keeps returning, sits away from the midline, or is not healing, which can point to an underlying condition such as Crohn's disease or an infection.
Treatment information
| Condition | Anal Fissure |
|---|---|
| Procedure | Lateral Internal Sphincterotomy (Laser / Open) |
| Duration | 15 to 25 minutes |
| Treated by | Proctologist / General Surgeon |
| Anaesthesia | Spinal or short general anaesthesia |
| Success rate | 95–98% |
| Recovery time | 2 to 4 days |
| Hospital stay | Daycare — same-day discharge in most cases |
Signs you may need Fissure treatment
- Sharp, cutting pain while passing stool
- A burning ache that continues for minutes to hours afterwards
- Bright red blood on the stool or on the toilet paper
- Burning or itching around the anus
- A visible small tear or split in the skin at the anal opening
- A small skin tag or lump near the tear (sentinel pile) in chronic cases
- Fear of passing stool, which then worsens the constipation
What causes it?
- Passing hard, dry or unusually large stools
- Chronic constipation and repeated straining
- Prolonged or severe diarrhoea irritating the anal lining
- A tight or spastic internal anal sphincter
- Trauma during childbirth, or in the weeks after delivery
- Local injury — forceful wiping, rectal instrumentation
- Underlying disease such as Crohn's, ulcerative colitis, TB or HIV
Who is more likely to be affected
- A low-fibre diet with inadequate water intake
- Recent childbirth
- Long-standing constipation or irritable bowel syndrome
- Inflammatory bowel disease
- Older age, where reduced blood flow slows healing
- Frequent use of stimulant laxatives
When to see a doctor immediately
- Pain and bleeding that persist beyond two weeks of home care
- Pain severe enough that you are avoiding or delaying bowel movements
- A fissure that keeps coming back after healing
- Fever, pus or swelling — signs of infection or a developing abscess
- A fissure positioned away from the midline, or multiple fissures
How it is diagnosed
Medical history
The surgeon asks about the character and timing of the pain, bleeding, bowel habits, diet, childbirth history and how long symptoms have lasted. The classic pattern — pain during stool, then a lingering burn — is highly suggestive on its own.
Gentle visual examination
Simply parting the buttocks usually reveals the fissure at the anal verge. Most anal fissures are diagnosed at this step alone, without any instrument being used.
Digital rectal examination
Done only when the fissure is not acutely painful, and often deferred or performed under anaesthesia if it is. It assesses sphincter tone, which guides whether a sphincterotomy will help.
Proctoscopy
A short lighted tube examines the anal canal to look for coexisting piles, a fistula opening or other pathology. Usually postponed until the pain has settled with medication.
Colonoscopy
Advised when fissures are recurrent, multiple, off-midline, or accompanied by diarrhoea and weight loss — to rule out inflammatory bowel disease or other causes before planning surgery.
How the options compare
| Feature | Open Sphincterotomy | Laser-assisted Procedure |
|---|---|---|
| Incision | Small open cut | Minimal, no open wound |
| Stitches | Sometimes required | Usually not required |
| Pain after surgery | Moderate | Minimal |
| Bleeding | Low | Very low |
| Wound care | Daily dressing needed | Minimal |
| Hospital stay | Often overnight | Daycare, same-day discharge |
| Return to work | 1–2 weeks | 2–4 days |
| Healing of the fissure | 3–6 weeks | 2–4 weeks |
Types of treatment
Non-surgical treatment (acute fissures)
Stool softeners and fibre
The foundation of every fissure treatment plan. Soft, bulky, effortless stools stop the tear being reopened daily, which is what allows it to heal at all.
Warm sitz baths
Sitting in warm water for 10–15 minutes, two to three times a day and after each bowel movement, relaxes the sphincter and increases blood flow to the tear. Simple, and genuinely effective.
Topical nitroglycerin (GTN) ointment
Relaxes the internal sphincter and improves blood supply so the fissure can heal. Headache is a common side effect in the first few days and usually settles.
Topical calcium channel blockers
Diltiazem or nifedipine ointment achieves a similar sphincter-relaxing effect with fewer headaches, and is often preferred when GTN is not tolerated.
Botulinum toxin injection
An injection into the internal sphincter that relaxes it for around three months — long enough for the fissure to heal. Used when ointments fail, before committing to surgery.
Surgical treatment (chronic or recurrent fissures)
Lateral internal sphincterotomy (LIS)
The gold standard for chronic fissures, with cure rates above 95%. A small, precisely measured portion of the internal sphincter is divided, permanently releasing the spasm so blood flow returns and the fissure heals. Done as a daycare procedure.
Laser-assisted sphincterotomy
The same principle delivered with a laser fibre rather than a blade. There is no open wound, bleeding is minimal, dressings are usually unnecessary and most patients are back to routine in a few days.
Fissurectomy
The chronic fissure's fibrotic edges and base are excised so a fresh, healthy wound can heal cleanly. Often combined with a sphincterotomy or Botox.
Sentinel pile / skin tag excision
The skin tag that forms alongside a long-standing fissure is removed in the same sitting, since it causes hygiene difficulty and keeps the area irritated.
Advancement flap
Healthy tissue is moved to cover the fissure. Reserved for patients in whom cutting the sphincter carries too high a continence risk — for example, women with previous obstetric injury.
What happens, step by step
- 1
Consultation and examination
20–30 minutes- A proctologist reviews your symptoms, bowel habits and medical history
- A gentle examination confirms the fissure and its position
- You are told clearly whether it is acute or chronic — and what that means for treatment
- 2
Trial of medical treatment
4–6 weeks (acute fissures)- Stool softeners, fibre supplements and adequate water intake
- Sitz baths two to three times a day
- Topical GTN or diltiazem ointment to relax the sphincter
- Most acute fissures heal at this stage and need no surgery at all
- 3
Admission and pre-operative checks
30–60 minutes- Only if the fissure is chronic or has not healed with medication
- Your coordinator completes admission formalities with you
- Blood tests, ECG and vitals are reviewed by the surgeon and anaesthetist
- Consent is taken and an IV line is started
- 4
The procedure
15–25 minutes- Spinal or short general anaesthesia is given — the procedure itself is painless
- The surgeon examines the fissure with the sphincter relaxed
- A small, measured portion of the internal sphincter is released (LIS)
- The fissure's chronic edges, and any sentinel pile, are dealt with in the same sitting
- No large cuts are made and stitches are usually not needed
- 5
Recovery room observation
1–2 hours- Vitals and pain are monitored as the anaesthesia wears off
- Oral fluids are started once you are fully awake
- You are encouraged to walk before discharge
- 6
Discharge
Same day- Most patients go home the same evening
- Painkillers, stool softeners and any antibiotics are prescribed
- Sitz-bath, diet and hygiene instructions are explained in detail
- Your free cab drops you home, and a follow-up is scheduled
How to prepare
- Complete the pre-operative blood tests and ECG as advised
- Tell your surgeon about blood thinners, diabetes or heart medication
- Start the prescribed stool softeners a couple of days before, so the first post-op motion is soft
- Fast for 6–8 hours before the procedure as instructed
- Arrange for an adult attendant to accompany you
Why patients choose this procedure
The pain stops
Releasing the sphincter spasm removes the cause of the pain, not just the symptom. Most patients notice a dramatic difference from the very first bowel movement after surgery.
Very high cure rate
Lateral internal sphincterotomy cures over 95% of chronic fissures — far higher than ointments alone, which frequently fail in long-standing cases.
Daycare, 20-minute procedure
Admission and discharge on the same day, with no multi-day hospital stay and no long leave from work.
Minimal wound care
With the laser-assisted technique there is no open wound to dress daily — sitz baths and hygiene are usually all that is needed.
Low recurrence
Because the underlying spasm is corrected, recurrence is uncommon when the diet and bowel-habit advice is followed.
Back to routine quickly
Most people with desk jobs return to work within 2 to 4 days.
Possible risks and side effects
Pain in the first few days
Some soreness is expected, though almost always far less than the fissure pain itself. It is well controlled with the prescribed painkillers.
Minor bleeding
Light spotting for a few days, especially with bowel movements, is normal. Heavy or persistent bleeding should be reported immediately.
Temporary difficulty controlling flatus
A small number of patients notice reduced control over gas for a few weeks. This is why the amount of sphincter divided is measured carefully, and why the technique is chosen to fit the individual patient.
Rare incontinence
Permanent difficulty controlling stool is rare with modern, measured sphincterotomy. Patients at higher risk — such as women with previous obstetric injury — are offered alternatives like an advancement flap instead.
Infection or abscess
Uncommon, and further reduced by hygiene and the prescribed antibiotics. Fever or swelling should be reported at once.
Recurrence
The fissure can return if constipation and straining continue, which is why the fibre, water and bowel-habit plan is part of the treatment rather than an afterthought.
What recovery looks like
Recovery after fissure surgery is usually quicker and easier than patients expect — largely because the pain they arrive with is often worse than anything they feel afterwards.
First 48 hours: expect mild soreness and possibly light spotting. Take the prescribed painkillers and stool softeners on schedule. Warm sitz baths for 10–15 minutes, two or three times a day and after every bowel movement, are the single most useful thing you can do.
Days 3 to 7: most patients with desk jobs are back at work. The first bowel movement after surgery is the one people dread most — with softeners started in advance, it is usually uneventful. Keep fibre and water intake high.
Weeks 2 to 4: the fissure itself heals over. Avoid heavy lifting, prolonged sitting on hard surfaces and cycling during this period. A follow-up review confirms healing.
Contact your care coordinator immediately if you develop fever, heavy bleeding, pus or swelling, or pain that is worsening rather than improving.
What to eat and what to avoid
Recommended
- High-fibre foods — oats, whole grains, dals and pulses
- Papaya, guava, pear, banana and other soft fruit
- Green leafy vegetables and salads
- 3 to 4 litres of water through the day
- Curd, buttermilk and other probiotics
- Soaked figs, raisins or isabgol (psyllium husk) at night
- Ghee or a spoon of olive oil to keep stools lubricated
Best avoided
- Spicy and heavily masala-laden food, which stings on the way out
- Deep-fried and processed food
- Maida and refined-flour products
- Red meat, which slows transit
- Alcohol and excess tea or coffee
- Delaying or holding back the urge to pass stool
Post-operative care, at no extra cost
- Diet and lifestyle consultation with a nutritionist
- Scheduled follow-up calls until you are fully recovered
- Free cab for the follow-up visit
- 24×7 access to your care coordinator for any concern
Fissure treatment cost
₹30,000 – ₹70,000
The range depends on whether the fissure is acute or chronic, whether a sentinel pile or skin tag also needs removing, the technique used, your city, the hospital and your room category. Fissure surgery is covered by most health insurance policies — our insurance desk checks your eligibility and files the cashless request before admission, at no charge.
Inside the care journey
Fissure — your questions answered
Piles are swollen veins; a fissure is a tear in the skin of the anal canal. The classic clue is the pain — piles are often painless and mainly bleed, while a fissure causes sharp, cutting pain during a bowel movement followed by a lingering burn. Both can bleed, which is why an examination rather than self-diagnosis is important.