Probe-guided intersphincteric lateral internal sphincterotomy shows significant promise for treating chronic anal fissures, enhancing surgical precision and outcomes.

• Achieved 96.4% healing rate within 4 weeks in 165 cases, with only 2 recurrences.
• Complications remained low: no incontinence or keyhole deformities reported, and only 2.4% required drainage revision.

This technique allows for effective management of complex cases, minimizing recovery time and enhancing patient satisfaction.

• Average procedure time was just 11 minutes with minimal blood loss (<5 ml).