What Is Endometriosis Excision Surgery?
Endometriosis excision surgery is a highly specialized procedure used to treat endometriosis by completely removing all visible disease from affected organs and tissues. Unlike methods such as ablation or coagulation, which burn the surface of the lesions, excision involves cutting out the disease at its root, including deep and infiltrative components that often go untreated in traditional surgeries.
Dr. Raanan Meyer is a board-certified gynecologic surgeon who specializes in advanced, fertility-preserving minimally invasive excision surgery for complex and deeply infiltrating forms of endometriosis, including thoracic and diaphragmatic disease. His approach emphasizes complete excision without thermal damage, supporting long-term symptom relief, lower recurrence rates, and better outcomes for fertility and organ function.
New to this? Read about endometriosis — symptoms, diagnosis, and when surgery helps.Why Excision Is Superior to Ablation or Coagulation
In many standard gynecologic surgeries, endometriosis is either coagulated (burned) or ablated using heat, laser, or electrosurgical tools. While this may reduce superficial symptoms temporarily, it often fails to treat deep lesions, leaving behind active disease that continues to cause pain, inflammation, and fertility issues.
Excision surgery differs in several critical ways:
- Removes the entire lesion, including deep and fibrotic tissue
- Preserves surrounding healthy structures
- Allows for histological confirmation (biopsy to confirm diagnosis)
- Reduces recurrence rates by addressing the full extent of disease
- Provides better long-term pain relief and improved fertility outcomes
Dr. Meyer’s philosophy is centered around complete excision, ensuring the disease is physically removed, not simply masked or cauterized.
Ablation
Surface of the lesion is destroyed with heat. Nothing is sent to pathology. Deep tissue is left in place.
Excision
The lesion is cut out whole with its margin, confirmed on pathology, and the anatomy underneath is restored.
Who Needs Excision Surgery for Endometriosis?
Excision surgery is ideal for patients with:
- Deep infiltrating endometriosis (DIE)
- Moderate to severe pelvic pain not controlled with medication
- Recurrent or persistent symptoms after prior ablation
- Endometriosis involving the bowel, bladder, ureters, or diaphragm
- Infertility suspected to be related to endometriosis
- Endometriosis confirmed on imaging (MRI or ultrasound)
- Diaphragmatic endometriosis
Even if you’ve had surgery before, complete excision by an experienced surgeon can significantly improve your outcomes especially when prior treatments involved coagulation or incomplete removal.
Expertise in Complex Endometriosis Excision Surgery
Deep Infiltrating Endometriosis (DIE) Excision Surgery
Deep infiltrating endometriosis is a complex and often debilitating form of the disease that penetrates more than 5mm beneath the peritoneal surface. It can involve:
- The uterosacral ligaments
- Rectovaginal septum
- Bowel (especially the rectum and sigmoid colon)
- Bladder and ureters
- Pelvic nerves
- The diaphragm and thoracic cavity
Dr. Meyer uses high-resolution imaging, laparoscopic mapping, and multidisciplinary collaboration to identify and completely remove deep endometriosis while preserving fertility and minimizing surgical risks.
Thoracic and Diaphragmatic Endometriosis Excision
Thoracic endometriosis is a rare but serious manifestation of the disease in which endometrial-like tissue migrates to the diaphragm, lungs, or pleural cavity. It can cause:
- Cyclical shoulder or upper abdominal pain (especially on the right side)
- Shortness of breath during menstruation
- Catamenial pneumothorax (lung collapse during menstruation)
- Chest tightness or hemoptysis (coughing up blood)
Diaphragmatic endometriosis may exist alongside pelvic disease and often goes undiagnosed without proper surgical evaluation.
Dr. Meyer is one of the few gynecologic surgeons trained to manage diaphragmatic endometriosis using robotic excision, often in collaboration with a thoracic surgeon. His expertise allows patients to receive comprehensive care in a single surgery, avoiding incomplete treatment and recurrence.
Surgical Approach: Minimally Invasive, Nerve-Sparing, Fertility-Preserving
Dr. Meyer performs all excision surgeries using minimally invasive techniques either laparoscopic or robotic-assisted depending on the extent of disease and patient anatomy.
Key elements of his approach include:
- 3D visualization for precision mapping of lesions
- Cold excision using scissors or sharp dissection (not heat or laser)
- Nerve-sparing dissection to preserve bladder, bowel, and sexual function
- Multidisciplinary planning when disease involves bowel, urinary tract, or diaphragm
- Custom surgical plans aligned with fertility preservation or reproductive goals
By removing disease while protecting surrounding structures, Dr. Meyer reduces the risk of adhesions, scar formation, and long-term complications.
The Surgery: What to Expect
Planned before the day
Imaging is mapped to the anatomy in advance. Where the bowel, bladder, or ureter is involved, colorectal and urologic colleagues are scheduled alongside, so everything is addressed in a single procedure.
Minimally invasive access
Laparoscopic or robotic, through several small incisions. The entire pelvis and upper abdomen are surveyed systematically, including the diaphragm and appendix, before anything is removed.
Disease removed and anatomy restored
Lesions are excised with their margins, adhesions are divided, and organs are returned to their normal position. Ovarian tissue is preserved wherever the disease allows.
Findings reviewed with you
The post-operative visit goes through the operative findings and the pathology in detail, along with what they mean for pain, fertility, and the chance of recurrence.
Recovery
Because excision is more technically demanding than ablation, it’s essential that it be performed by a surgeon with specialized training. When done properly, most patients experience:
Days 7–14
Dr. Meyer’s patients often return to work within 7–14 days, depending on the complexity of their case. Recovery protocols are customized to each patient’s procedure, lifestyle, and fertility plan.
Weeks 3–6
Significant pain relief within 3–6 weeks post-op, alongside restoration of normal function in affected organs.
Longer term
Improved chances of natural conception or IVF success, and a dramatic reduction in recurrence risk.
Excision Surgery and Fertility
Excision surgery has been shown to:
- Improve spontaneous pregnancy rates in women with infertility
- Increase IVF success rates in patients with advanced disease
- Reduce miscarriage risk in patients with uterine or adnexal involvement
Dr. Meyer works closely with reproductive endocrinologists to coordinate timing, medications, and follow-up care for patients actively pursuing pregnancy. His fertility-sparing surgical techniques ensure that as much ovarian and uterine tissue as possible is preserved while thoroughly removing disease.
Why Choose Dr. Raanan Meyer for Endometriosis Excision Surgery in Los Angeles
Dr. Meyer brings a rare combination of surgical precision, multidisciplinary coordination, and personalized care to endometriosis surgery in Los Angeles and Beverly Hills. With deep experience in treating all forms of endometriosis including thoracic and deeply infiltrating types, he is committed to offering patients the best possible outcomes through evidence-based, minimally invasive care.
What sets Dr. Meyer apart:
- Focus on excision, not coagulation or partial removal
- Advanced laparoscopic and robotic expertise
- Collaborative approach for bowel, urologic, and thoracic involvement
- Fertility-centered surgical planning
- Compassionate, transparent communication
Questions patients ask
It depends entirely on the extent of disease. A straightforward excision may take under two hours; deep disease involving the bowel or ureter, with a second surgical team, can run considerably longer. The estimate you are given before surgery is based on your imaging.
Only if the disease requires it, and you will know that it is a possibility before the day. Where the bowel is involved, the plan is discussed in advance with a colorectal surgeon and the options are explained before you consent.
Yes, and timing matters. Surgery and IVF cycles are coordinated with your reproductive endocrinologist so the two do not compete, and the recovery window is factored into the plan.
Bring the operative report, the pathology, and any imaging. Prior records often explain why symptoms returned, and Dr. Meyer reviews them before recommending anything further.
