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Evaluation & Diagnosis

Answers begin here.

Our diagnostic process starts with a crucial step, listening deeply to your story. Our aim is to identify the true source of your pain, including causes often missed elsewhere.

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As Thorough as it Gets

Endometriosis & Adenomyosis Evaluation Process

At Lotus Endometriosis Institute, evaluation starts with something simple that is often overlooked: we listen deeply to your story. The goal is not to just check boxes, but to uncover the true root cause of your pain or fertility challenges. This includes potentially diagnosing highly related conditions — which are often missed, ignored, or not even considered by other providers.

We listen, thoroughly

We start by learning about and hearing your full story — every symptom, flare pattern, and past treatment — so nothing important is overlooked. This is why the introductory materials and questionnaires we also send are extremely helpful.  Using the written information in your own words and listening more than one time and usually by more than one provider, gives us the best chance to help you. 

Root Cause Exploration

We conduct careful examination combined with diagnostic insight to distinguish endo from look-alike or coexisting conditions.  Endometriosis can cause a lot of different and sometimes seemingly unrelated symptoms or findings, but it can’t and does not cause everything.  Using clinical expertise, we dig into the details and apply a modern functional approach that produces actionable results.

Oncologic-Level Vigilance

We pay careful attention to rare but serious concerns such as pelvic masses or cancer risk in patients with long-standing or complex disease.  This is combined with evaluation and discussion of any genetic factors than can strongly influence decisions and prognosis.

Targeted Advanced Imaging

Expertly interpreted MRI, ultrasound, or other imaging to identify suspected endometriosis and related pelvic conditions.

Microbiome & Gut Health Testing

When symptoms suggest, we assess for SIBO, leaky gut, and dysbiosis, which can amplify inflammation and pain.

Infection & Environmental Triggers

Selected patients may benefit from evaluation for Lyme disease, mold/mycotoxin exposure, or other chronic infections that worsen immune imbalance.

Immune & Hormonal Screening

We conduct testing for autoimmune overlap, thyroid dysfunction, PCOS, or adrenal imbalance that may complicate symptoms or fertility.

Pelvic Floor & Neurologic Assessment

Identifying pelvic floor dyssynergia, small fiber neuropathy, or central sensitization that contribute to chronic pain.

Vascular & Structural Conditions

Depending upon your symptoms, evaluation may include testing for pelvic venous congestion, May-Thurner Syndrome, and hernias that mimic or worsen endo pain.

Diagnosis

Our evaluation process is designed to be as thorough and comprehensive as possible, not only to look for signs of endometriosis, but to also address related conditions and ensure you receive truly complete care. These steps help us rule out look-alike issues, uncover contributing factors, and guide treatment planning with accuracy. That said, endometriosis cannot be 100% confirmed through imaging, lab work, blood tests, genetic testing, or any other non-surgical method. Because the disease develops within the pelvic cavity and organs, the only way to access the tissue, perform a biopsy, and provide an official diagnosis is through minimally invasive surgery.

Comprehensive Care

Endometriosis rarely exists in isolation, which is why we guide you through a holistic, whole-body evaluation. This includes conditions that mimic, worsen, or coexist with endometriosis — from gut dysbiosis and pelvic floor dysfunction to vascular issues, autoimmune overlap, or even rare but critical cancer risks. Validation through a correct diagnosis is always the first priority. Once we know what’s really happening, treatment can be tailored to your unique condition and goals — whether it be relief of daily pain, improving quality of life, or restoring fertility potential.

My lower abdomen hurts the most. a young female patient talking to a doctor in their office.

Your Care Continues

Pre & Post-operative Evaluation

In some cases, certain biomarkers can help evaluate endometriosis and may be elevated before surgery. Re-testing these markers after surgery to confirm improvement is part of our routine 3-month follow-up appointment (provided free of charge). If endometriomas were found and removed, follow-up ultrasound may also be recommended. For California patients, we can order these studies directly; for out-of-state patients, we provide guidance on what to request locally and review the results with you to ensure nothing is missed.

Portrait of smiling young nurse showing digital tablet screen to senior African American woman in hospital bed

After Surgery & Beyond

Post-operative Testing

At Lotus Endometriosis Institute, the surgical intervention does not end when the procedure is complete. We go the extra mile by analyzing the tissues removed, looking for factors that may influence your long-term prognosis and guide tailored recommendations for additional therapies.


This may include:

  • Mitotic index testing – measuring how actively cells are dividing, which provides insight into the biological behavior of your endometriosis.

  • Tissue mast cell density – identifying the level of mast cell activity, which may explain heightened inflammation, pain sensitivity, and symptom severity.

  • Immune and molecular markers – when appropriate, we evaluate immune profiles or emerging biomarkers (such as cfmiR research applications) that can inform ongoing monitoring and future treatment options.

  • Hormone receptor profiling – understanding estrogen and progesterone receptor activity in excised tissue can help personalize decisions about adjuvant hormonal support.

Laboratory assistant putting test tubes into the holder, Close-up view focused on the tubes

Ready When You Are

Ready to start your evaluation?

Most centers stop after surgery. At Lotus, we continue looking for hidden drivers of recurrence or persistent pain, so treatment can be fine-tuned. This “post-op lens” is part of why our care is more complete, and why patients feel more secure after surgery.

Common Questions

Why do I have painful urination and pelvic cramping between periods?

Painful urination with pelvic cramping between periods can happen when the bladder, ureters, uterus, pelvic floor, or nerves are being irritated—sometimes in a way that still follows a subtle cycle pattern even if you’re not actively bleeding. Endometriosis can contribute by affecting the bladder wall or tissues around the bladder and ureters, and symptoms don’t have to include visible blood in the urine. Importantly, urinary tract endometriosis isn’t always “obviously urinary,” and ureter involvement can be quiet while still significant, which is why we take these symptoms seriously.


These symptoms can also come from conditions that overlap with (or mimic) endometriosis, such as bladder pain syndrome/interstitial cystitis, pelvic floor overactivity, adenomyosis-related uterine cramping, or other pelvic pain drivers. In our evaluation process, we focus on your full flare pattern—what triggers it, how it relates to your cycle, and whether urine tests have been repeatedly negative—then use targeted exam and the right imaging (often expertly interpreted ultrasound and/or MRI) to map what’s actually going on.


If you’re noticing recurring burning with urination, pressure, cramping, or symptoms that predictably flare mid-cycle or before your period, that pattern is useful diagnostic information—not something to dismiss. You can explore our urinary symptom and diagnostic evaluation resources to see how we approach “UTI-like” symptoms with negative cultures, and you’re welcome to reach out to schedule a consultation so our team can help you sort out whether this is bladder/ureter endometriosis, a look-alike condition, or a combination.

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Which adenomyosis symptoms most affect daily life?

Adenomyosis symptoms that most disrupt quality of life usually come from two main issues: how the uterus bleeds and how it hurts. Many patients describe heavy or prolonged periods that interfere with work, school, travel, and sleep—sometimes with flooding, frequent pad/tampon changes, and fatigue that can follow significant blood loss. Severe period pain (often more than “normal cramps”) is also common, and it can feel deep, aching, or pressure-like, sometimes accompanied by an enlarged, tender uterus and a sense of pelvic heaviness or bloating.


Outside of the period itself, adenomyosis can contribute to chronic pelvic pain, pain with sex for some people, and bowel or bladder discomfort—especially when symptoms flare around the menstrual cycle. It can also overlap with endometriosis, and when both are present symptoms may intensify or become harder to tease apart. If your day-to-day life is being shaped by bleeding, pain, pressure, or fertility stress, our team can help you sort out whether adenomyosis, endometriosis, fibroids, or more than one condition may be driving the pattern—and what next-step options make sense for your goals.

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Why do I look pregnant from bloating with constant pelvic pressure?

Feeling so bloated you “look pregnant” along with constant pelvic pressure usually points to more than simple gas—often it’s a pelvic condition creating inflammation, swelling, or a sense of bulk. Endometriosis can irritate the bowel and pelvic lining, trigger scarring that tethers organs, and create the classic “endo belly” sensation that comes and goes (sometimes not perfectly cyclical). Pelvic pressure can also happen when endometriosis involves deeper tissues or nearby organs like the bladder, ureters, or rectum.


Just as important: these symptoms can be driven by endometriosis neighbors or coexisting conditions, especially adenomyosis and fibroids, which can make the uterus feel heavy, full, or “bulky” and add pressure on the bladder and bowel. Ovarian cysts and other benign pelvic findings can contribute, and IBS-like bowel sensitivity can overlap so closely that symptoms alone don’t reliably sort out what’s causing what. Our team focuses on mapping the full picture—uterus, ovaries, bowel, bladder, and pelvic support structures—so treatment targets the true driver(s), not just the most obvious diagnosis.


If this pressure/bloating is persistent, worsening, or changing your ability to eat, move your bowels, or urinate comfortably, it’s a strong reason to pursue a deeper evaluation rather than being told it’s “normal.” You can explore our educational content on bowel symptoms, bladder symptoms, and overlapping conditions, and reach out to schedule a consultation so we can review your history, imaging, and symptom pattern and outline a plan aimed at lasting relief.

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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.

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Why do I get low back and leg pain during my period?

Low back and leg pain that predictably flares with your period can happen when pelvic inflammation irritates pain pathways that “refer” into the back, hips, buttocks, and down the leg. In some patients, endometriosis can be part of that story—either indirectly (pelvic inflammation and scarring increasing pressure and sensitivity around nearby nerves) or more directly if disease is affecting areas close to major nerves.


When period-related leg pain resembles sciatica—deep buttock pain, tingling, burning, or pain radiating down the back of the thigh—it raises the possibility of endometriosis-related sciatic irritation or pelvic floor involvement (often described as piriformis-type pressure on the nerve). These symptoms may start before bleeding, peak during the period, and linger afterward, and in more significant cases can be associated with weakness or changes in walking.


Because back and leg pain can also come from the spine, hips, or muscles, the key is the pattern and the full symptom “constellation,” including pelvic pain, bowel/bladder symptoms, or pain with sex. Our team can help you sort out whether your pain fits an endometriosis/adenomyosis pattern and, if needed, plan next-step evaluation such as targeted imaging and a strategy focused on lasting relief rather than temporary suppression.

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Can endometriosis cause infertility and pelvic pain in your 20s?

Yes. Endometriosis can absolutely show up in your late 20s and it can be a driver of both chronic pelvic pain and fertility challenges. Pain can include severe or worsening period cramps, pain with sex, bowel or bladder pain, and “flare” patterns that track with your cycle—although symptom severity doesn’t always match how much disease is present.


Endometriosis can affect fertility in several ways, including adhesions that distort tubo‑ovarian anatomy, inflammation and immune signaling that interferes with fertilization or embryo development, and ovarian factors—especially when endometriomas are involved. For some patients, the uterine environment also matters, particularly when adenomyosis is present alongside endometriosis. In our practice, we focus on listening to your full symptom and fertility story and then building an evaluation that looks for endometriosis while also checking for common look‑alikes or coexisting issues, so we can tailor a plan to your goals—whether that’s pain relief, preserving fertility, or both.

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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