Excision Surgery (for Endometriosis)

Excision surgery is surgery that removes endometriosis completely, to its full depth. The surgeon cuts each lesion free at its edges (margins) and lifts it out of the surrounding tissue. The surgeon works under direct view of the disease, so that all of it is removed.

Ablation and fulguration work differently. They destroy only the visible surface of a lesion. Deeper implants remain behind.

A meta-analysis of randomized controlled trials compared excision with ablation. At 12 months, excision reduced painful periods (dysmenorrhea), painful bowel movements (dyschezia), and chronic pelvic pain significantly more.¹

A crowd-sourced survey asked people who had undergone both surgeries to look back on them. They reported that excision improved every symptom area measured, by 28% to 46%.² After ablation, the same people reported only small gains in period pain (11.3%) and heavy bleeding (8.5%). They reported that 23 of 24 quality-of-life measures grew worse.²

For endometriomas, ovarian cysts caused by endometriosis, excision gives better results than ablation. The cysts also recur less often.³

Excision also serves the goal of reconstruction. Removing all of the disease lowers inflammation. That change affects the anatomy of the pelvis, the function of the tubes, and the setting for implantation. Surgeons usually pair excision with careful adhesion prevention. This practice protects the anatomy of the pelvis. It does more than reduce the visible disease.

For couples who hope to conceive after endometriosis surgery, complete excision matters. Disease left behind continues to progress. The goal is to treat the anatomy, not mask the condition.