I've had an anal fissure for about 8 months now with an 8mm mass near the front. It only hurts during bowel movements when my stool is hard, otherwise no pain at all, but there's a little pus at the site. Do I need surgery for this? If so, what are the side effects? Would lateral internal sphincterotomy (LIS) be recommended and what are its side effects?

Answered by 1 Apollo Doctors

Dr Kamran Mohammed

General Practitioner

MBBS
FIDM
5+ Yrs

Consult Now

Given the presence of an anal fissure for 8 months, a mass, pain during hard stools, and pus, surgery might be needed to address the chronic nature of the issue and potential infection. Lateral internal sphincterotomy (LIS) is a surgical option but it's crucial to discuss its risks and benefits with a doctor, including the possibility of sphincter incontinence.

Dr. Kamran Suggests...

Consult a Colorectal Surgeon

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Answered 14/08/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.