Lateral Internal Sphincterotomy (LIS)
The gold-standard surgical treatment for chronic anal fissure - a small, precisely controlled incision in the internal anal sphincter relieves spasm, restores blood flow, and allows complete healing. Best fissure doctor in Hyderabad at Lux Hospitals.
What is Lateral Internal Sphincterotomy (LIS)?
Lateral Internal Sphincterotomy (LIS) is the gold-standard surgical treatment for chronic anal fissure. The procedure involves a small, precisely controlled incision in the lower portion of the internal anal sphincter - the hypertonic muscle whose spasm causes the pain cycle and poor blood supply preventing healing. By releasing the sphincter spasm, LIS immediately relieves pain, restores blood flow, and allows the fissure to heal rapidly. Dr. Samhitha Reddy, one of the best fissure doctors in Hyderabad, performs LIS at Lux Hospitals using a lateral approach that minimises incontinence risk while achieving complete therapeutic effect. It is the most recommended fissure surgery in Hyderabad for chronic disease.
How the Procedure Works
Assessment
Dr. Samhitha confirms chronic status (>6 weeks). Resting anal pressure is assessed. Surgery planned as a day-care procedure.
Anaesthesia
Short spinal or general anaesthesia. Lithotomy position. Peri-anal local anaesthetic infiltration for additional post-operative analgesia.
Lateral Incision
A small 1–1.5 cm incision is made laterally (3 or 9 o'clock) - the lateral approach avoids the posterior midline and minimises keyhole deformity risk.
Sphincterotomy
The lower fibres of the internal anal sphincter are divided under direct vision to the level of the fissure apex - precisely controlled division, no more.
Wound Closure & Recovery
The small lateral incision is closed with a single absorbable suture. Discharged within a few hours. Dramatic pain relief within 24 hours of surgery.
Outcomes
Who Needs This Treatment?
- →Highest cure rate for chronic anal fissure (>90%) in properly selected patients
- →Immediate pain relief - most patients notice dramatic improvement within 24 hours
- →Day-care procedure - no overnight hospital stay at Lux Hospitals, Hyderabad
- →Quick recovery - return to work in 24–48 hours
- →Minimal incontinence risk when performed by an experienced fissure surgeon in Hyderabad
- →Covered by most major health insurance plans
LIS remains the single most effective treatment for chronic anal fissure. The gratitude patients feel when they wake up and find that years of daily agony has been resolved by a 10-minute procedure is one of the most rewarding experiences in proctology.
— - Dr. Samhitha Reddy, Consultant Proctologist & Laparoscopic Surgeon
Common Questions
Frequently Asked
Not sure which treatment is right for you?
Book a consultation with Dr. Samhitha Reddy and get a personalised treatment plan.