Excision Surgery (for Endometriosis)

By RRM Academy Reviewed by Dr. Naomi Whittaker, MD, Board-Certified OBGYN, MIGS, NFPMC, FCI Updated May 14, 2026

Excision surgery is the complete surgical removal of endometriotic tissue by cutting it out at the margins, including lesion depth, rather than only destroying the surface. The operating surgeon resects each lesion from surrounding tissue under direct visualization, removing the disease in full. This stands in contrast to ablation and fulguration, which destroy only the visible surface while leaving deeper implants intact.

The clinical case for excision rests on outcome data. A cohort comparison found that excision improved outcomes across all 63 symptom measures evaluated, with improvements ranging from 28% to 46%.¹ Ablation, in the same comparison, marginally improved period pain (11.3%) and heavy bleeding (8.5%) while worsening 23 of 24 quality-of-life measures.¹ A separate analysis found significantly greater reductions in dysmenorrhea, dyschezia, and chronic pelvic pain with excision at 12 months.² For ovarian endometrioma specifically, excisional surgery produces superior outcomes compared to ablative approaches, with lower recurrence rates.³

Excision also serves the reconstructive goal. Thorough disease removal reduces inflammatory burden, which has downstream effects on pelvic anatomy, tubal function, and implantation environment. The surgical approach typically pairs lesion excision with careful attention to adhesion prevention, preserving pelvic architecture rather than simply reducing visible disease.

For couples pursuing fertility after endometriosis surgery, the completeness of excision matters. Disease left behind continues to progress. The surgical goal is to treat the anatomy, not mask the condition.

This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.