Lateral Internal Sphincterotomy

Lateral internal sphincterotomy is a surgical procedure used to treat chronic anal fissures by partially cutting the internal anal sphincter muscle to relieve spasm and reduce pressure in the anal canal. Chronic fissures often fail to heal because sphincter spasm restricts blood flow to the area, and this controlled release allows the fissure to heal naturally. It is considered the gold-standard surgical treatment for fissures that do not respond to topical medication. The procedure has a very high success rate in resolving pain and promoting fissure healing.

Lateral Internal Sphincterotomy is recommended for patients diagnosed with specific conditions where other approaches have been insufficient. Your Colorectal & Proctology specialist will assess your suitability based on your diagnosis, health history, and treatment goals.

The typical duration is 1-2 weeks recovery. This may vary based on the complexity of your case and individual response to treatment.

Recovery typically takes Most patients experience significant pain relief within days and return to normal activity within 1-2 weeks. Warm sitz baths, a high-fibre diet, and stool softeners are recommended during healing to keep bowel movements comfortable.. Your care team will provide specific instructions based on your response and overall health.

Side effects vary by individual and are detailed in the section above. Your specialist will discuss all risks and benefits with you before treatment begins. Serious adverse effects are uncommon but are part of the informed consent process.

Lateral Internal Sphincterotomy has a documented success rate of 95% at accredited facilities. Outcomes depend on disease stage, patient health, and adherence to the treatment plan and aftercare instructions.