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

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.
Find Your Expert Endometriosis Surgeon
Our specialists are here to help you understand your condition and explore your treatment options.
Schedule ConsultationHow 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
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
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
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
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
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
How is multi-organ endometriosis treated without organ removal?
In many multi-organ cases, the goal is conservative surgery: removing endometriosis while preserving the organs themselves. That typically means meticulous excision of disease from surfaces and deeper planes around the bowel, bladder, ureters, ovaries, and pelvic sidewalls—freeing organs from scar tissue and restoring normal anatomy without taking the organ out. Because endometriosis can hide in distorted or “frozen” anatomy, the safest way to preserve organs is often a highly precise approach that can dissect around vital structures.
In our practice, we use robotic excision to improve visualization and fine-control dissection, which is especially helpful when disease involves multiple compartments or has been operated on before. When endometriosis is close to structures like the ureters, bowel, diaphragm, or certain nerves, treatment planning may include coordinated work with other surgical specialists so the disease can be fully addressed in one operation while still prioritizing organ-sparing techniques.
Organ removal is usually considered only when an organ is severely damaged, there are multiple large endometriomas that can’t be safely managed with tissue-sparing techniques, fertility-safety concerns arise (like a badly damaged tube), or there’s concern for tumor or malignant change. If you’re trying to avoid organ removal, we can help map likely disease sites, clarify your priorities (pain relief, function, fertility), and outline what organ-preserving excision could realistically look like in your specific case—then build a surgical plan around that.
How much time off work do I need after endometriosis surgery?
Most people need about 2–3 weeks off work after minimally invasive endometriosis excision, especially if your job is mainly desk-based and you can ease back in. With robotic excision, patients often go home the same day or next day, start walking comfortably within about a week, and many feel ready for a gradual return to typical daily routines in that 2–3 week window.
The exact time off depends less on the incision size and more on what we need to treat during surgery—for example, ovarian endometriomas, bowel/bladder/ureter involvement, extensive scar tissue (“frozen pelvis”), or additional procedures like appendix removal or adenomyosis-related surgery. More complex, multi-organ cases can mean more fatigue, more activity restrictions, and a higher chance of needing an overnight stay, which can extend the time you’ll want to plan away from work.
In most straightforward recoveries, many patients are back to full activity by about a month. If you tell our team what you do for work (lifting, long shifts, travel, on-your-feet all day vs remote/desk), we can help you plan a realistic time-off request and a safer return-to-work ramp based on the surgical plan we’re building for you.
Why does ovarian cyst pain keep coming back?
Ovarian cyst pain can feel “recurrent” for a few different reasons. Some cysts are functional (they form with ovulation and then resolve), so the pain returns in a similar spot month after month even though it’s not the exact same cyst. In other cases, the cyst itself can come back or persist—especially if it’s an endometrioma (an ovarian cyst caused by endometriosis), which can behave differently than a simple cyst and may be associated with deeper pelvic disease.
Another common reason is that the cyst isn’t the whole story: endometriosis on the pelvic sidewall, uterosacral ligaments, bowel, bladder, or around the ovary can irritate the same nerves and tissues and make it feel like “my cyst is back” when the driver is actually inflammatory disease nearby. Adhesions (scar-like bands) can also tether the ovary and cause recurring pulling or sharp pain, even when imaging doesn’t show a large cyst. If your pain cycles, escalates, returns quickly after a “normal” ultrasound, or keeps recurring despite prior treatment, our team can help you map the pattern, interpret imaging with an endometriosis lens, and decide whether targeted evaluation and—when appropriate—excision surgery is the next best step.
Why do I have chronic fatigue and pelvic pain?
Chronic fatigue plus pelvic pain often feels “unexplainable” because it’s rarely caused by just one issue—and many of the most common drivers don’t show up on routine labs or a quick ultrasound. Endometriosis and adenomyosis can cause persistent pelvic pain, painful periods, bowel/bladder symptoms, and deep fatigue through inflammation, disrupted sleep, heavy bleeding (and possible iron deficiency), and the sheer energy cost of living with ongoing pain. It’s also common for more than one gynecologic condition to coexist—like fibroids, polyps, or benign cysts—so a single label may not fully match what you’re experiencing.
Another reason symptoms can persist is that the nervous system can become more pain-sensitive over time (often called central sensitization), meaning pain can spread, linger outside your cycle, or feel disproportionate to what imaging shows. In those cases, symptom relief alone can miss the bigger picture: we think in terms of both treating disease (for example, addressing endometriosis lesions or uterine drivers like adenomyosis/fibroids) and building a personalized pain-management plan so your body can “turn down the volume” on pain signals.
If your fatigue and pelvic pain have been brushed off or left without a clear plan, our team can help you sort through the likely contributors, including endometriosis/adenomyosis and common coexisting conditions, and map next steps that fit your goals. You can explore our educational resources on fatigue, chronic pelvic pain, and comprehensive treatment approaches, and reach out to schedule a consultation when you’re ready.
Why is my period pain so severe it disrupts my daily life?
Severe, life-disrupting period pain isn’t “normal cramps,” and it often points to an underlying driver that deserves a real explanation—not just symptom masking. One common cause is endometriosis, where tissue similar to the uterine lining grows outside the uterus and can irritate pelvic structures, trigger inflammatory chemicals, and sometimes involve organs like the bowel or bladder. Another key point is that pain severity doesn’t reliably match “stage,” so someone can have intense pain even if imaging looks normal or disease appears limited.
When period pain is severe, worsening over time, starts years after your first period, or comes with heavy bleeding, painful sex, bowel pain with periods, urinary pain, or fatigue, we think in patterns—because endometriosis and related conditions can overlap with pelvic floor dysfunction, nerve pain/central sensitization, GI dysbiosis, vascular issues, or adenomyosis. Our approach is to take your full timeline and flare pattern seriously and then tailor evaluation with careful exam and expertly interpreted imaging when helpful. If your pain is disrupting school, work, relationships, or daily functioning, reach out to schedule a consultation—our team can help you identify what’s driving it and map out a plan aimed at lasting relief.


