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Choosing an Endometriosis Surgeon in Los Angeles

A patient framework for evaluating surgeon training tiers, excision expertise, and whole‑person care in Los Angeles.

By Lotus Endometriosis Institute
A woman in a sunlit Los Angeles apartment compares surgeon profiles on her laptop alongside a color‑coded tiered checklist for excision expertise and whole‑person care.

Defining What “Best” Means in Endometriosis Surgery


Many patients begin their search for care by typing phrases like “best endometriosis doctor”“best endometriosis surgeon in Los Angeles”, or “endometriosis specialist near me” into search engines. While these queries are understandable, they tend to produce a mix of clinicians with widely varying levels of training and surgical capability. The term “best” becomes difficult to interpret without a clear understanding of what differentiates one surgeon from another.


This article aims to clarify what “best” actually means in the context of endometriosis care by explaining the major differences in surgical training pathways, operative skills, and case complexity. It provides a structured, objective framework that helps patients identify which level of expertise aligns with their medical needs. In doing so, it moves beyond generic search results and toward a concrete, evidence-based understanding of surgical quality. Selecting the right surgeon for endometriosis is one of the most consequential decisions a patient will make. Endometriosis is a complex disease, and cases vary widely—from superficial peritoneal implants to deep infiltrating endometriosis involving the bowel, bladder, ureters, nerves, and diaphragm. These variations directly influence which type of surgeon is most appropriate. Unfortunately, many patients are not aware that "endometriosis surgeon" can describe clinicians with dramatically different levels of training, experience, and operative capability.


This article outlines the three main categories of surgeons who treat endometriosis, explains the differences in their training, and clarifies what each category is equipped to manage. This framework allows patients to make informed decisions and understand why surgeons with advanced subspecialty backgrounds—particularly those trained in gynecologic oncology—bring a distinct level of surgical expertise for complex cases.


The Role of Surgical Training in Endometriosis Care


Endometriosis often affects anatomical structures well beyond the reproductive organs (Becker et al., 2022; ESGE/ESHRE/WES, 2020). Deep infiltrating endometriosis may involve the bowel, bladder, ureters, and pelvic nerves (Becker et al., 2022; ESGE/ESHRE/WES, 2020; Leborne et al., 2022). Treating these forms of the disease requires precise knowledge of pelvic anatomy and the ability to safely dissect in areas of dense scarring or altered anatomy.


The surgeon's training pathway determines the extent of their operative capabilities. While many surgeons perform laparoscopy or laparoscopic excision, only a small subset have formal subspecialty training in multi-organ pelvic surgery.


Tier 1: General Obstetrician–Gynecologists


General OB-GYNs complete a four-year residency that includes training in a broad range of women’s health concerns. They perform routine laparoscopic procedures and can usually treat mild or superficial endometriosis. However, their residency training does not include advanced retroperitoneal dissection, ureteric surgery, bladder reconstruction, or bowel surgery. As a result, general OB-GYNs typically:

    • Treat mild to moderate disease.
    • Avoid operating on bowel, bladder, or ureteric endometriosis.
    • Rely on ablation or partial excision.
    • Refer complex cases or work with co-surgeons.

They serve an important role but are not equipped for advanced disease.


Tier 2: Minimally Invasive Gynecologic Surgeons and High-Volume Excision Surgeons


Some OB-GYNs pursue additional minimally invasive gynecologic surgery (MIGS) training or build high-volume laparoscopic experience. MIGS fellowships focus on advanced laparoscopy, including excision of endometriosis (Cho et al., 2023).

These surgeons generally:

    • Perform high-quality laparoscopic or robotic excision.
    • Manage superficial to moderately deep infiltrating endometriosis.
    • Are much better at fertility-preserving approaches.
    • Collaborate with colorectal or urologic surgeons for bowel or ureteric disease and gynecologic oncologists for general pelvic distorted anatomy such as "frozen pelvis."

This group includes many excellent, well-known clinicians; however, fellowship training in MIGS does not encompass the full spectrum of multi-organ pelvic surgery required for the most complex cases. Few have a background and training focused on endometriosis only. Most have broad training which including management of multiple benign gynecologic diseases.


Tier 3: Gynecologic Oncologists Specializing in Endometriosis Excision


Gynecologic oncology is the most surgically intensive fellowship within pelvic medicine (Becker et al., 2022; ESGE/ESHRE/WES, 2020). This training includes extensive experience in:

    • Retroperitoneal dissection.
    • Ureterolysis and ureter reconstruction.
    • Bladder dissection and repair.
    • Bowel surgery.
    • Management of severe adhesions and altered anatomy.
    • Complex multi-organ operations.

Surgeons with this background perform procedures that many other specialists are neither trained nor credentialed to undertake. When these skills are applied to endometriosis, they offer a level of surgical capability that is particularly valuable for:

    • Deep infiltrating endometriosis (DIE).
    • Multi-organ involvement, including upper abdomen and diaphragm
    • Recurrent or failed prior surgeries.
    • Cases with extreme adhesions.
    • Situations where anatomy is significantly distorted.

Because they can manage bowel, bladder, ureter, and nerve involvement independently, gynecologic oncologists provide a comprehensive surgical solution rather than a multi-surgeon patchwork.


Recent published studies show that gynecologic oncologists are performing benign surgery at a higher rate, in addition to cancer surgery. This means up to 50% or more of their practice is not cancer. However, only a few focus on endometriosis other than serving as intra-operative consultants.


The handful of gynecologic oncologists that do focus on endo internationally excel in this area not just because they are capable of the highest level of pelvic and abdominal surgery but also because they deeply understand the management of this very complex condition. This includes both management of benign endometriosis and the uncommon associated cancers that become more common in older patients or in those with genetic anomalies or strong family history of certain cancers.


Dr. Steven Vasilev is one of the few that focus on endometriosis within this elite category of highest surgical training and expertise. This means any degree of disease can be handled while also applying appropriate organ and fertility sparing approaches because of a deep understanding of endo.


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How This Framework Helps Patients


The purpose of defining these tiers is not to diminish the skill of surgeons in Tiers 1 or 2. Each tier serves patients with different needs. Mild disease does not require the same level of surgical specialization as deep or recurrent disease, other than to mention that correctly identifying endometriosis during surgery is not always obvious to the untrained surgical eye.


However, patients with complex presentations often benefit substantially from surgeons trained in Tier 3, where multi-organ pelvic surgery is routine rather than exceptional. Understanding these distinctions allows patients to seek care from surgeons whose training aligns with the severity of their disease.


The problem is that, even with imaging of the highest quality, the degree of disease is often not predictable. Thus, it may be prudent to have surgery with the best trained surgeon you can find whose plan resonates with your needs and preferences regarding management of pain and fertility options.


Why Patients Should Consider Subspecialty Expertise for Complex Disease


In advanced endometriosis, the quality and completeness of initial excision strongly influence long-term outcomes (Leborne et al., 2022; Roman et al., 2018). Inadequate removal of disease can result in persistent pain, recurrent symptoms, complications from repeated surgeries, and progressive organ involvement. Training in gynecologic oncology brings anatomical expertise, surgical precision, and extensive operative experience that are well-matched to the highest-complexity cases, especially when multiple organ systems are involved.


The Value of Integrative and Holistic Approaches


Endometriosis is a systemic condition but often triggered at the core by disease that can be surgically addressed. Patients frequently experience gastrointestinal dysfunction, chronic pelvic floor hypertonicity, widespread inflammation, immunomodulation disorders and hormonal imbalance. As such, comprehensive care often extends beyond surgery. Training in integrative and holistic medicine allows a surgeon to incorporate evidence-based strategies that support overall recovery, address systemic contributors to pain, and promote long-term stability.


This combination—advanced surgical capability plus integrative management—is uncommon and highly valuable.


Why Lotus Endometriosis Institute Offers a Distinct Level of Care


For patients seeking the highest level of expertise and comprehensive support, the Lotus Endometriosis Institute provides a uniquely qualified center. The Institute integrates advanced surgical capability, integrative medicine, and a patient-centered philosophy designed for complex endometriosis.


What Sets Lotus Apart

    • Single-surgeon mastery: All advanced surgical care is performed by Dr. Steven A. Vasilev, whose training and experience align directly with Tier 3 requirements described above.
    • Complete excision capability: Deep infiltrating disease involving bowel, bladder, ureter, or diaphragm can be managed in one setting by a surgeon fully trained in multi-organ pelvic surgery.
    • Advanced minimally invasive and robotic command: Oncology-grade precision is applied to endometriosis excision, improving visualization, accuracy, and safety.
    • Integrative whole-patient care: Lifestyle medicine, nutrition, and holistic strategies support recovery, reduce chronic inflammation, and reinforce long-term symptom control.
    • Dedicated endometriosis focus: For over a decade, the Institute has centered its clinical mission on the management of endometriosis and complex pelvic disease, including cancers related to endo.


Comparison Table: Endometriosis Surgeons in Los Angeles

Category

Dr. Steven A. Vasilev, MD

Typical High-Volume LA Endometriosis Specialist

General OB-GYN With Laparoscopy

Board Certifications

4 (OB-GYN, Gyn Oncology, Integrative, Holistic)

1–2

1

Fellowship Training

Gynecologic Oncology (deepest pelvic surgery fellowship)

MIGS fellowship or none

None

Surgical Focus (Last 10+ Years)

Full focus on endometriosis & complex pelvic disease

Endo + other benign GYN surgeries

Broad OB-GYN practice

Case Complexity

Deep infiltrating, bowel, bladder, ureter, diaphragm

Moderate–deep; often requires co-surgeons

Mild–moderate

Experience

35–40+ years

10–20 years

5–15 years

Academic Roles

Professor, program director, 90+ publications

Some academic involvement

Minimal

Multi-Organ Surgical Ability

Yes (built into oncologic fellowship)

Sometimes to a limited extent

Rare

Robotic Surgical Mastery

Oncology-level robotic excision

Advanced laparoscopy and variable robotics

Standard laparoscopy

Redo/Recurrence Expertise

High

Moderate

Low

Integrative Medicine

Dual board-certified

Rare and Variable

Minimal


The Lotus Philosophy

  • Advanced excision surgery
  • Pelvic floor and pain-focused rehabilitation partners
  • Whole-person integrative lifestyle strategies
  • Long-term follow-up and individualized planning

To learn more about our surgical program, visit the Institute’s page on Surgery and Advanced Excision.


Conclusion


Patients in the Los Angeles region have access to a wide range of clinicians who treat endometriosis. Understanding distinctions between general OB-GYNs, high-volume minimally invasive specialists, and gynecologic oncologists specializing in complex pelvic surgery empowers patients to choose a surgeon whose training matches the severity of their disease. This framework offers an objective, training-based way to evaluate surgical expertise. For deep infiltrating endometriosis, recurrent disease, multi-organ involvement, or complex pelvic anatomy, selecting a surgeon with advanced subspecialty training can significantly influence long-term outcomes and quality of life.

References

  1. Becker CM, et al. ESHRE guideline: endometriosis 2022. European Society of Human Reproduction and Embryology. This guideline emphasizes the importance of surgeon expertise and recommends referral to specialized centers for deep infiltrating endometriosis. DOI: 10.1016/j.rbmo.2024.104779

  2. Working group of ESGE/ESHRE/WES. Recommendations for the surgical treatment of endometriosis. Part 2: Deep endometriosis. Human Reproduction Open. 2020. This consensus statement details the technical demands of deep endometriosis surgery and highlights the need for advanced surgical capability. PMC7162667

  3. Leborne J, et al. Clinical outcomes following surgical management of deep infiltrating endometriosis. Scientific Reports. 2022. Long-term data confirming acceptable complication rates and reinforcing that complex cases are best managed in experienced centers. DOI: 10.1016/j.rbmo.2025.105178

  4. Roman H, et al. Conservative surgery versus colorectal resection in deep endometriosis. Human Reproduction. Compares outcomes of different surgical techniques for bowel endometriosis, showing both the complexity and the nuances of advanced-stage management. DOI: 10.1093/humrep/dez217

  5. Cho M, et al. Minimally invasive surgery for deep endometriosis. Reviews minimally invasive approaches and reiterates the need for comprehensive knowledge of pelvic anatomy and multi-organ surgical skill.

Quick Answers

What are signs endometriosis has returned after surgery?

Endometriosis “returning” after surgery can show up as symptoms that improve for a while and then gradually (or suddenly) come back months or even years later. The most common signal is the return of your familiar pattern—cyclical pelvic pain, worsening period pain, pain with intercourse, or pain that starts spreading beyond where it used to be. Some people also notice bowel or bladder symptoms re-emerge (pain with bowel movements, rectal pressure, urinary urgency or bladder pain), especially if those organs were involved before. New or increasing fatigue and activity limitation can be part of the picture, but the key is a clear change from your post-op baseline.


It’s also important to know that recurrent pain doesn’t always equal recurrent disease. Even after complete excision, the nervous system can stay “turned up,” and pelvic floor dysfunction, adhesions, or central sensitization can keep pain going or make normal sensations feel painful—so we think in terms of patterns, triggers, and timing rather than a single pain score. If symptoms are returning, our team can help you sort whether you’re in a true recurrence lane (improved, then returned) versus persistent pain that never fully settled, and decide when imaging (such as ultrasound or MRI) is useful—particularly for tracking ovarian endometriomas. If you’re noticing a shift back toward your old symptoms, reach out to schedule a consultation so we can build a clear, long-term follow-up plan with you.

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What questions should I ask an endometriosis specialist?

Come in focused on how your surgeon thinks and how your care will be mapped out. Helpful questions include: based on my symptoms and records, what diagnoses are you considering (endometriosis, adenomyosis, and common look‑alikes), and what makes you lean one way or another? Ask what additional records or imaging would meaningfully change the plan, and whether your imaging will be interpreted with endometriosis mapping in mind—not just a “normal/abnormal” read.


If surgery is on the table, ask for specifics about technique and scope: do you primarily perform excision (rather than superficial burning/ablation), and how do you confirm what was removed (photos, operative report detail, pathology)? Ask what areas you expect could be involved in your case (ovaries, bowel, bladder/ureters, diaphragm) and whether a multidisciplinary team is planned if those organs may be affected. It’s also reasonable to ask how they define surgical “success” for your goals—pain relief, bowel/bladder function, fertility—and how outcomes and recurrence/persistent symptoms are handled.


Finally, ask how the care process works from start to finish: what the pre‑op workup includes, what recovery typically looks like for the anticipated complexity, and how follow‑up is structured if symptoms don’t resolve fully. In our practice, we review records purposefully before meeting so the conversation is productive and realistic, and we’ll be direct about whether surgery seems likely to help or whether another path makes more sense. If you’d like, you can reach out to schedule a consultation and we’ll tell you exactly what to send first so we can make your visit worth your time.

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How do I document endometriosis for work accommodations?

Documenting endometriosis for work accommodations starts with creating a clear paper trail that connects your diagnosis (or suspected diagnosis) to specific functional limits at work. Keep a simple symptom log for at least 4–8 weeks: date, symptom (pelvic pain, fatigue, bowel/bladder pain, heavy bleeding), severity, duration, triggers, and exactly what work tasks were affected (missed shifts, reduced standing tolerance, inability to sit, concentration issues, frequent bathroom breaks). Save objective documentation too—operative and pathology reports if you’ve had surgery, imaging reports when available, ER/urgent care notes, medication or treatment history, and any workplace attendance or performance impacts that occurred during flares.


For an accommodation request, what usually helps most is a concise clinician letter that focuses on work restrictions rather than extensive medical detail—e.g., need for flexible scheduling during flares, ability to work from home at times, breaks for pain management/restroom access, limits on prolonged standing/sitting, or intermittent leave when symptoms are unpredictable. If you’re pursuing disability benefits, the same principle applies: decision-makers look for consistent records over time showing that symptoms significantly interfere with your ability to perform job duties, since endometriosis isn’t automatically classified as a disability.


Our team can help you organize the records that best support your case and, when appropriate, provide medical documentation that reflects the reality of your symptoms and functional limitations. If you’d like, reach out to schedule a consultation so we can review what you already have and identify what additional documentation would be most useful for workplace accommodations.

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How do I explain endometriosis to my employer?

It often helps to keep your explanation simple and work-focused: endometriosis is a chronic inflammatory condition where tissue similar to the uterine lining grows outside the uterus and can cause significant pelvic pain, fatigue, and GI or bladder symptoms. Symptoms can flare unpredictably and aren’t always limited to your period, which is why you may need flexibility at certain times. You don’t need to share intimate details—just the functional impact (for example: pain, fatigue, and medical appointments can affect attendance, sitting/standing tolerance, or concentration).


If you’re requesting support, be specific about what would help you do your job well, such as intermittent time off for flares, the ability to work from home when symptoms spike, scheduled breaks, or flexibility around medical visits and potential procedures. Many patients find it useful to frame this as a long-term health condition with variable days rather than a one-time illness, and to document patterns of symptoms and missed work so your needs are clear.


If you’d like, our team can help you describe your condition and anticipated care in a medically accurate way that supports workplace accommodations, especially if symptoms are affecting your ability to function consistently. You can also explore our educational resources on endometriosis and work impacts, and reach out to schedule a consultation if you’re looking for a clearer plan for diagnosis and treatment.

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How long does pelvic floor therapy take to help endometriosis?

Most patients don’t feel a dramatic change after one visit—pelvic floor therapy for endometriosis tends to build over time. When symptoms are being driven by pelvic floor overactivity, protective muscle guarding, and nerve sensitization, early sessions often focus on assessment, calming pain signaling, and learning strategies your body can tolerate. Many people notice the first meaningful shifts over several weeks as muscles start to relax and coordination improves, especially for pain with sex, bladder/bowel symptoms, and daily pelvic tension.


How long it takes overall depends on what’s keeping your pain “switched on”—active disease, adhesions, central sensitization, posture/movement compensations, or a mix. If endometriosis lesions are still a major pain generator, therapy can still help reduce pelvic floor spasm and improve function, but it may work best as part of a broader plan that also addresses the disease itself. In our practice, we often use pelvic floor therapy as a complement before and/or after excision (when indicated) to support recovery, improve comfort with exams or intimacy, and reduce the odds that muscle and nerve patterns keep pain going. If you’d like, our team can help you figure out whether pelvic floor dysfunction is a key driver of your symptoms and what a realistic therapy timeline could look like for you.

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Reach Out

Have a question?

Dr. Steven Vasilev delivers best-in-class endometriosis guidance and a personalized treatment plan—built on evidence and your unique biology.


Led by Steven Vasilev, MD—an internationally recognized endometriosis specialist & MIGS surgeon—Lotus Endometriosis Institute is virtual-forward, with many patients traveling nationally for care. Clinical evaluation and surgical treatment are provided in California.

Santa Monica, CA

2121 Santa Monica Blvd, Santa Monica, CA 90404

Operating Hours

8:00 am - 5:00 pm
Monday - Friday

Arroyo Grande, CA

154 Traffic Way, Arroyo Grande, CA 93420