When surgical treatment is the right approach for endometriosis, the method of that treatment matters significantly. Not all surgical approaches to endometriosis produce equivalent outcomes — and the distinction between excision and ablation is one of the most clinically important differences in endometriosis surgical care.
Excision removes endometriosis lesions completely by cutting them out of the surrounding tissue. It removes the full depth of each lesion, including any subsurface disease that extends below the visible surface. Ablation destroys the surface of lesions using heat, laser, or electrical energy — but does not remove the underlying tissue. When ablation is incomplete, subsurface disease persists, continues to produce inflammation and pain, and is often the explanation for symptoms that return relatively quickly after surgery.
The evidence supporting excision over ablation for endometriosis has grown substantially. Excision is associated with more complete disease removal, lower recurrence rates, more durable pain relief, and better outcomes for both symptoms and fertility. It is the preferred surgical approach at Lapeer Women’s Health for all but a small subset of cases where excision carries disproportionate risk.
This page explains what endometriosis excision surgery involves, how it is performed, what to expect from the procedure and recovery, and what the outcomes look like. If you are considering surgical treatment for endometriosis, the information on this page is the foundation of an informed surgical decision.
The distinction between excision and ablation is the most important surgical concept for any woman considering endometriosis surgery. It determines both the completeness of disease removal and the durability of symptom relief.
Excision — Complete Removal
Excision removes endometriosis lesions in their entirety by cutting them out of the surrounding tissue using sharp dissection, electrosurgical cutting, or laser. The surgeon identifies the margins of each lesion, dissects it free from the underlying tissue, and removes it completely — including any disease that extends below the visible surface. The specimen can be sent for histological confirmation. Excision is technically more demanding than ablation because it requires precise identification of disease margins and careful dissection in proximity to vital structures — which is why the training and experience of the surgeon performing it matters significantly to the outcome.
Ablation — Surface Destruction
Ablation destroys the visible surface of endometriosis lesions using thermal energy — electrocautery, bipolar energy, or laser. It is technically simpler to perform than excision and is faster in the operative setting. However, it treats only the surface of the lesion without removing the underlying tissue. Endometriosis lesions that extend below the visible surface — which is common, particularly with deeper implants — are not fully addressed by ablation. The underlying disease continues to produce inflammation, the inflammatory scar tissue heals over the ablated surface, and symptoms recur at a higher rate than after thorough excision. Ablation has a role in specific situations — particularly for very superficial lesions in locations where excision carries elevated risk — but it is not the preferred approach for most endometriosis surgery at Lapeer Women’s Health.
Why Recurrence After Surgery Is Often Incomplete Treatment
One of the most common reasons symptoms return relatively quickly after endometriosis surgery is incomplete removal of disease — ablation of visible lesions that left subsurface disease intact, missed lesions in difficult locations, or inadequate attention to subtle endometriosis presentations that were not recognized at the time of surgery. When a woman who has had prior endometriosis surgery continues to have significant symptoms, the surgical history — specifically what approach was used and what was identified and treated — is a critical piece of clinical information for planning any subsequent intervention. Prior ablation-only surgery does not preclude excision surgery — and in many cases, excision of residual or recurrent disease after prior ablation provides the durable relief that the initial surgery did not.
You do not need a referral from another provider to schedule an endometriosis surgical consultation with Dr. Andrei. If you have prior imaging, operative reports, or records from previous evaluations, bringing them to your appointment will help — but they are not required to get started.
- Lapeer Office — 1245 N Main St, Lapeer, MI 48446
- Rochester Hills Office — 2710 S Rochester Rd, Suite 2, Rochester Hills, MI 48307
- Surgery performed at McLaren Lapeer Region, Beaumont Hospital Royal Oak, and Crittenton Hospital
Endometriosis excision surgery at Lapeer Women’s Health is performed laparoscopically or with robotic assistance — minimally invasive approaches that provide direct visualization of the entire pelvis and allow thorough removal of disease with smaller incisions and faster recovery than open surgery.
The Surgical Approach — Laparoscopic and Robotic-Assisted
Endometriosis excision is performed through small abdominal incisions using a camera (laparoscope) and specialized instruments. The laparoscope provides magnified, high-definition visualization of the entire pelvic cavity — allowing identification of endometriosis implants that range from subtle, clear or white lesions to the more recognizable dark powder-burn lesions and deep nodules. Robotic-assisted excision uses the da Vinci surgical platform to provide enhanced three-dimensional visualization and greater instrument articulation — particularly valuable for excising deep infiltrating endometriosis in anatomically complex locations including the uterosacral ligaments, rectovaginal septum, and areas adjacent to the ureter, bladder, and bowel.
Identification of All Endometriosis Lesions
Thorough endometriosis excision begins with systematic inspection of the entire pelvis — not simply treatment of the most obvious lesions. Endometriosis presents in multiple forms, and recognizing the full spectrum of appearances is central to complete excision. Subtle lesions including clear vesicles, white or yellow plaques, red flame lesions, and peritoneal windows are as clinically significant as the classic dark powder-burn implants and require the same thorough excision. A surgeon who inspects the entire peritoneal surface, the cul-de-sac, the uterosacral ligaments, the ovarian fossae, the bladder peritoneum, and the bowel surface systematically — rather than treating only the obvious disease — is most likely to achieve complete or near-complete removal.
Treatment of Ovarian Endometriomas
When ovarian endometriomas are present, the preferred surgical approach is cystectomy — removal of the cyst wall — rather than drainage alone. Drainage without cystectomy has a very high recurrence rate because the endometriosis-producing cyst lining remains. Cystectomy removes the cyst wall with care to minimize damage to the surrounding healthy ovarian cortex, which contains the primordial follicles that contribute to ovarian reserve. For women who are concerned about fertility, the surgical approach to endometriomas is discussed specifically in the context of ovarian reserve preservation.
Adhesiolysis — Freeing Structures Bound by Scar Tissue
Adhesions — fibrous scar tissue produced by endometriosis-related inflammation — are addressed at the time of excision surgery through a process called adhesiolysis. Adhesions binding the ovaries to the pelvic sidewall, the bowel to the uterus, or other structures together are carefully divided to restore normal anatomy, relieve mechanical pain, and improve the pelvic environment for fertility. Adhesiolysis is an important component of thorough endometriosis surgery and is performed as part of the excision procedure when adhesions are identified.
Deep Infiltrating Endometriosis — A More Complex Surgical Challenge
Deep infiltrating endometriosis involving the uterosacral ligaments, rectovaginal septum, bladder, or bowel wall is among the most surgically demanding endometriosis to treat. Excision in these locations requires careful dissection in proximity to the ureter, the rectum, and the bladder — structures that must be identified and protected throughout the procedure. Robotic-assisted surgery provides significant technical advantages in these anatomically complex cases. For cases involving significant bowel wall involvement, surgical planning may include coordination with a colorectal surgical colleague for cases where bowel resection is part of the treatment plan.
The goal of endometriosis excision surgery is the most complete removal of all visible and palpable endometriosis that is safely achievable in a single procedure — performed with careful attention to preserving healthy tissue and protecting vital structures throughout.
Dr. Ramona D. Andrei, MD, PhD, FACOG is a board-certified gynecologist with advanced training in minimally invasive and robotic-assisted surgery. Her surgical approach to endometriosis prioritizes excision over ablation, complete disease removal over expedient treatment, and minimally invasive technique over open surgery whenever it is safe and technically feasible.
Excision & Robotic-Assisted Surgery
Dr. Andrei performs laparoscopic and robotic-assisted endometriosis excision, including complex cases involving deep infiltrating disease, ovarian endometriomas, and significant adhesion formation. Robotic assistance provides enhanced visualization and precision for excision in anatomically challenging locations. Excision rather than ablation is the default approach at Lapeer Women’s Health for all appropriate cases.
Hospital Affiliations
Endometriosis excision surgery is performed at McLaren Lapeer Region, Beaumont Hospital Royal Oak, and Crittenton Hospital — providing access to facilities equipped for advanced minimally invasive gynecologic surgery for patients from both the Lapeer and Rochester Hills service areas.
The Surgical Consultation
The surgical consultation involves a thorough review of your imaging and clinical history, a clear explanation of the surgical approach appropriate for your disease, a discussion of risks and benefits specific to your case, and a full opportunity to ask questions. No surgical recommendation is made without your complete understanding of what is proposed and why.
Understanding what the recovery experience looks like and what outcomes to expect is an important part of making an informed surgical decision. The following reflects the typical experience for laparoscopic and robotic-assisted endometriosis excision at Lapeer Women’s Health.
Recovery After Minimally Invasive Excision
Laparoscopic and robotic-assisted endometriosis excision is performed under general anesthesia as an outpatient or same-day procedure for most patients. Hospital stay is typically same-day or overnight depending on the extent of surgery and individual recovery factors. Most patients are mobile within hours of surgery. Return to light activity typically occurs within one to two weeks, and return to full normal activity including exercise within two to four weeks for most cases. More extensive procedures involving significant adhesiolysis or deep infiltrating disease may require a somewhat longer recovery. Dr. Andrei discusses individualized recovery expectations before every surgical procedure.
Pain Relief After Excision
Most women who undergo thorough endometriosis excision experience meaningful improvement in their pain symptoms. The degree and durability of relief depends on the completeness of disease removal, the extent of disease that was present, whether central sensitization has developed from long-standing disease, and individual response factors. Dysmenorrhea, chronic pelvic pain, dyspareunia, and cyclical bowel and bladder symptoms typically all improve following thorough excision. Many women describe the improvement as transformative — particularly those who have lived with significant pain for years and have lost track of what their baseline felt like before endometriosis.
Recurrence After Excision
Endometriosis can recur after excision surgery, though recurrence rates following thorough excision are significantly lower than after ablation or incomplete treatment. Factors affecting recurrence include the completeness of initial excision, individual biological factors related to the disease’s behavior, whether postoperative hormonal suppression is used, and proximity to menopause. Many women experience years of meaningful symptom relief after thorough excision before any recurrence, and a second excision procedure is feasible for appropriate candidates if disease does return. For women who have completed childbearing and wish to minimize recurrence risk, definitive treatment including hysterectomy may be the right choice.
Postoperative Hormonal Management
For many patients, postoperative hormonal suppression — using a hormonal IUD, combined oral contraceptives, or progestin therapy — is recommended after excision surgery to suppress residual microscopic disease and extend the duration of symptom relief. The specific postoperative hormonal plan depends on the extent of disease removed, the patient’s reproductive goals, and whether a return of symptoms would be acceptable in the context of planning future pregnancy. Dr. Andrei discusses the postoperative management plan at the surgical consultation and again before discharge.
Many women who seek an endometriosis surgical consultation at Lapeer Women’s Health have been told that their options are limited — that ablation is the standard approach, that their disease is too complex for minimally invasive surgery, or that hysterectomy is the only remaining option. Sometimes those assessments are correct. But sometimes they reflect the limits of what was available in a prior clinical setting rather than the limits of what is possible.
Excision surgery, performed by a surgeon with appropriate training and experience, provides durable relief for many women who have not found adequate benefit from prior treatment. A surgical consultation that reviews your imaging, your symptom history, and your prior treatment in detail is the way to find out whether excision is the right next step for you.
Dr. Ramona D. Andrei and the team at Lapeer Women’s Health are here for that consultation — at both our Lapeer and Rochester Hills offices, without a referral required.
Endometriosis Excision Surgery
Whether you are considering endometriosis surgery for the first time, seeking a second opinion, or looking for a surgeon who performs excision rather than ablation, Dr. Andrei and the team at Lapeer Women’s Health are here — at both our Lapeer and Rochester Hills offices, without a referral required.
Schedule a Gynecologic VisitThe information on this page is intended for educational purposes only and does not constitute medical advice. Individual symptoms, diagnoses, and surgical recommendations vary significantly. Reading this content does not establish a physician-patient relationship with Dr. Ramona D. Andrei or Lapeer Women’s Health. If you are experiencing a medical emergency, call 911 or go to the nearest emergency room immediately. Please consult a qualified healthcare provider for advice specific to your situation. Content reviewed by Dr. Ramona D. Andrei, MD PhD FACOG.
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Lapeer Women’s Health — Rochester Hills
2710 S Rochester Rd, Suite 2
Rochester Hills, MI 48307
Serving patients in Lapeer, Rochester Hills, and surrounding communities throughout Southeast Michigan.