Shaving vs disc vs bowel resection for endometriosis: what’s the difference?

Bowel endometriosis can be treated with a few different surgical techniques, and the names describe how much of the bowel wall is removed. Shaving removes disease off the surface of the bowel (serosa) without cutting into the bowel lumen; it’s often used when lesions are more superficial or can be safely separated from the bowel. Disc excision removes a “full-thickness” button of bowel wall at the spot where the lesion penetrates more deeply, and the bowel is then closed—this is typically chosen for a deeper, localized nodule.

Segmental bowel resection removes an entire segment of bowel and reconnects the ends (an anastomosis). It’s generally reserved for more extensive disease—such as longer areas of involvement, multiple close lesions, significant narrowing (stricture), or situations where a smaller excision wouldn’t be durable or safe. The right option depends on lesion depth, size, location (often rectum/sigmoid), how much the bowel is narrowed, your symptoms, and your goals.

In our practice, we plan bowel surgery the same way we plan all advanced endometriosis surgery: with careful pre-op mapping when possible and a strategy focused on complete, safe excision while protecting bowel function. If you’ve been told you “might need a resection,” we can help you understand what your imaging and symptoms suggest, what procedures are realistically on the table, and how a robotic excision approach can support precision in complex pelvic anatomy—reach out to schedule a consultation with our team.