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Deep Disease

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

The short answer

Shaving removes disease from the bowel surface, disc excision removes a full-thickness piece of bowel wall, and segmental resection removes a bowel segment and reconnects the ends. The choice depends on lesion depth, size and location, bowel narrowing, symptoms and your goals.

Bowel endometriosis can be treated with several surgical techniques, and the names describe how much of the bowel wall is removed. Shaving removes disease from 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 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, creating 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, and location, often the rectum/sigmoid, as well as 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, which procedures are realistic options, and how a robotic excision approach can support precision in complex pelvic anatomy. Reach out to schedule a consultation with our team.

Where to go from here

Understand it, compare it with what you're feeling, then talk it through with us.

Step 3 · Speak with Us

Understand Your Surgery Options

We know choosing the right surgery for bowel endometriosis can be overwhelming. Our experts explain the differences and help tailor treatment to your unique deep disease needs.

Questions people ask next

All deep disease questions
  • What bowel endometriosis techniques are used, and what risks?

    Bowel endometriosis surgery may use superficial shaving, full-thickness discoid excision, or segmental bowel resection, depending on disease depth and extent. Potential complications can include bowel leak, fistula, temporary ostomy, nerve-related changes, and altered bowel habits during recovery.

  • How is bowel endometriosis treated without a colostomy?

    In many cases, bowel endometriosis can be treated surgically without a colostomy by removing disease from the bowel surface or removing deeper disease and repairing or reconnecting the bowel. A temporary stoma may be recommended in select higher-risk situations.

  • Will endometriosis excision surgery need bowel resection or a stoma?

    Most endometriosis excision surgeries do not require a bowel resection, and a stoma is uncommon. These possibilities come up mainly when endometriosis grows deep into the bowel wall or scar tissue has significantly distorted the anatomy.

  • Why would a cancer surgeon perform endometriosis excision?

    A gynecologic cancer surgeon has skills that often translate directly to challenging endometriosis excision, including operating safely around critical organs. Their experience recognizing atypical tissue can add an extra layer of safety during surgery.

Reach Out

Have a question?

Lotus Endometriosis Institute provides California-based surgical evaluation and advanced excision care for patients with suspected endometriosis, adenomyosis, complex pelvic pain, and related conditions.


Many patients contact us from outside California to learn whether traveling for in-person evaluation and possible surgery may be appropriate.

Call Us

(424) 255-1340

(805) 920-0909

Fax: (805) 935-4338

Santa Monica, CA

2121 Santa Monica Blvd, Santa Monica, CA 90404

Operating Hours

8am - 5pm
Monday - Friday

Arroyo Grande, CA

154 Traffic Way, Arroyo Grande, CA 93420