You've tried the Diltiazem ointment, the sitz baths, the high-fibre diet, and the stool softeners. You've been at it for weeks — maybe months. But the sharp, tearing pain every time you visit the toilet hasn't gone away.
If your anal fissure has persisted for more than 6–8 weeks, it is now classified as a chronic fissure. At this stage, the tear has developed scar tissue (called a sentinel pile or skin tag), and the internal anal sphincter muscle is locked in a permanent spasm. Ointments alone will no longer work.
The good news? Chronic fissure treatment in India has evolved significantly. You now have three highly effective options — and understanding the differences will help you make the right choice.
Why Do Chronic Fissures Refuse to Heal?
A fissure becomes chronic because of a vicious cycle:
- The tear in the anal lining causes the sphincter muscle to spasm tightly.
- The spasm reduces blood supply to the torn area.
- Without adequate blood flow, the tissue cannot regenerate.
- Scar tissue (fibrosis) forms around the edges, making the fissure rigid.
- Every bowel movement re-tears the rigid scar, restarting the cycle.
All three treatment options below work by addressing the root cause: relaxing the sphincter muscle spasm so blood can flow back and heal the fissure permanently.
Option 1: Laser Sphincterotomy (The Modern Gold Standard)
Laser sphincterotomy uses a precise laser beam to make a controlled, tiny cut in the internal sphincter muscle. This immediately releases the spasm, restores blood flow, and allows the chronic fissure to heal within days.
How It Works
- Performed under local or spinal anaesthesia (you feel nothing)
- A diode laser makes a precise, 3–5 mm incision in the internal sphincter
- Any sentinel pile or skin tag is removed simultaneously
- The laser cauterises as it cuts — virtually no bleeding
- Entire procedure takes 10–15 minutes
- You go home the same day
Success Rate & Recovery
- Success rate: 95–98% — the highest among all chronic fissure treatments
- Pain relief is immediate (most patients notice dramatic improvement within 24 hours)
- Return to work: 2–3 days (desk job), 5–7 days (physical work)
- Full healing: 2–3 weeks
- Incontinence risk: Less than 1% (far lower than traditional open sphincterotomy)
Option 2: Botox Injection (Chemical Sphincterotomy)
Botulinum toxin (Botox) is injected directly into the internal sphincter muscle. It temporarily paralyses the muscle, releasing the spasm for 2–3 months — giving the fissure a window to heal.
How It Works
- Quick outpatient procedure — takes 5 minutes
- 20–40 units of Botox injected into the internal sphincter under local anaesthesia
- No incision, no cutting
- Muscle relaxation begins within 2–3 days, peaks at 1 week
Success Rate & Limitations
- Success rate: 60–70% for first injection
- The effect is temporary — Botox wears off in 2–3 months
- If the fissure doesn't heal during this window, a second injection or surgery is needed
- Recurrence rate: 40–50% — significantly higher than surgical sphincterotomy
- Best suited for patients who want to avoid surgery or have mild chronic fissures
Option 3: Lateral Internal Sphincterotomy (LIS) — Traditional Surgical Approach
LIS is the conventional open surgical technique where the surgeon manually cuts a portion of the internal sphincter muscle using a scalpel. It has been the standard surgical treatment for decades.
How It Works
- Performed under spinal or general anaesthesia
- A small incision is made at the side (lateral) of the anus
- The lower portion of the internal sphincter muscle is divided
- Procedure takes 15–20 minutes
Success Rate & Concerns
- Success rate: 90–95% — very effective
- Recovery: 1–2 weeks for most patients
- Incontinence risk: 3–8% — this is the key concern. Some patients experience difficulty controlling gas or minor faecal soiling, especially long-term
- More post-operative pain and bleeding compared to laser
Cost Comparison: Chronic Fissure Treatment in India (2026)
| Treatment | Cost Range | Success Rate | Recovery | Incontinence Risk |
|---|---|---|---|---|
| Laser Sphincterotomy | ₹30,000 – ₹60,000 | 95–98% | 2–3 days | Less than 1% |
| Botox Injection | ₹15,000 – ₹30,000 | 60–70% | 1–2 days | None |
| LIS (Open Surgery) | ₹25,000 – ₹50,000 | 90–95% | 1–2 weeks | 3–8% |
All costs are approximate and vary by city, hospital, and surgeon experience. Insurance typically covers chronic fissure surgery as a medically necessary procedure.
Which Treatment Should You Choose?
Here's the practical decision framework most Indian proctologists follow:
- First-time chronic fissure, otherwise healthy: Laser sphincterotomy — highest success rate, lowest risk, fastest recovery
- Elderly patients or those with sphincter concerns: Botox injection first — if it fails, proceed to laser
- Recurrent fissure after Botox failure: Laser sphincterotomy or LIS
- Complex fissure with fistula or abscess: Requires specialist evaluation — not a routine case
At SURGISAATHI, our proctologists assess your specific fissure type through a digital rectal examination and recommend the least invasive, most effective option. Our consultation is free, confidential, and available via WhatsApp — no need to describe your symptoms out loud to anyone.