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Adenomyosis

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Understand diagnosis, symptom management, and care for this uterine condition, with practical guidance on MRI/ultrasound imaging, fertility planning, surgical choices, and how diffuse and focal forms differ.

Overview

Adenomyosis occurs when endometrial glands and stroma grow into the uterine muscle (myometrium), causing an enlarged, tender uterus with heavy periods, cramping, and pelvic pressure. It is distinct from endometriosis, which grows outside the uterus, but the two conditions often coexist and can compound pain and fertility challenges. Learn how clinicians recognize adenomyosis, when imaging helps, and how the pattern of disease—diffuse versus focal—shapes care choices and expectations over time.


Care is individualized around goals such as symptom relief, cycle control, and preserving or completing fertility. Explore how medications, devices, and non-hormonal strategies ease pain and bleeding; when advanced imaging clarifies diagnosis and guides therapy; and what to consider when weighing uterus‑sparing procedures versus definitive surgery. For scan specifics and report language, see Imaging & Diagnosis (MRI, Ultrasound). For daily relief strategies, visit Symptoms & Management. For disease patterns, compare Diffuse Adenomyosis and Focal Adenomyosis. Fertility planning and pregnancy outcomes are covered in Fertility Considerations, and operative decision‑making in Surgical Options.

Common Questions

Why do I feel flu-like during my period?

Feeling “flu-like” during your period—achy, wiped out, foggy, sometimes even slightly feverish—often reflects a surge of inflammation and immune signaling that can happen as the uterine lining sheds. Prostaglandins and other inflammatory mediators can drive body aches, chills, headache, nausea, and bowel changes, and the overall physiologic stress of bleeding plus pain can leave you feeling like you’re coming down with something.


When these flu-like symptoms are intense, worsening over time, or paired with significant pelvic pain, bowel/bladder symptoms, heavy bleeding, or deep pain with sex, we start thinking beyond a “normal period.” Conditions like endometriosis and adenomyosis can amplify inflammatory activity and pain—sometimes far out of proportion to what routine exams or basic imaging show—and fatigue can also be compounded by heavy bleeding and iron deficiency. If this pattern keeps showing up month after month, our team can help you map your symptom timing, evaluate likely drivers, and discuss options that range from targeted medical management to definitive diagnosis and treatment with minimally invasive excision when appropriate.

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Can IVF workup detect endometriosis?

Yes—endometriosis can be suspected during an IVF workup, but it’s often not definitively “found” unless there’s a clear clue. Antral follicle count ultrasound may reveal an ovarian endometrioma, and your history (painful periods, pain with sex, bowel/bladder symptoms, prior cysts) can raise suspicion even when routine imaging looks normal.


What IVF testing typically can’t do is reliably rule endometriosis out. Superficial disease and many forms of deep endometriosis may be missed on standard pelvic ultrasound, and even high-quality imaging needs expert interpretation to identify subtler patterns or related conditions like adenomyosis.


If endometriosis is a concern during fertility planning, our team focuses on a thorough, story-driven evaluation plus targeted exam and expertly interpreted ultrasound/MRI when appropriate—so you’re not left guessing between “unexplained infertility” and a potentially treatable root cause. If you’re in the middle of IVF decisions, reach out to schedule a consultation so we can help you clarify what may be present and how it could impact next steps.

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What tests check infertility when endometriosis is suspected?

When infertility and suspected endometriosis overlap, we usually evaluate two things in parallel: whether there’s an underlying fertility factor (ovulation, sperm, tubal/uterine issues) and whether endometriosis or adenomyosis is likely contributing through inflammation, adhesions, or anatomic distortion. The workup often starts with a detailed history of cycle patterns, pain and bowel/bladder symptoms, prior pregnancies or losses, and any past surgeries—because the symptom pattern can help us target the right testing instead of repeating “normal” basics.


Testing commonly includes pelvic imaging—typically a high-quality transvaginal ultrasound and, when indicated, expertly interpreted MRI—to look for endometriomas, deep disease features, adenomyosis, and other pelvic conditions that can impact implantation or egg pickup. A fertility evaluation may also include ovarian reserve and hormone labs, confirmation of ovulation timing, and assessment of the uterine cavity and fallopian tubes (for example with contrast-based imaging) plus a semen analysis for your partner. In selected patients, we also look for coexisting issues that can complicate fertility or mimic endo symptoms—such as thyroid dysfunction, PCOS patterns, autoimmune overlap, or other whole-body drivers that can amplify inflammation.


It’s important to know that imaging and labs can strongly raise or lower suspicion, but endometriosis is ultimately confirmed by tissue diagnosis when surgery is performed, and biopsy results depend on sampling and surgical expertise. If you share what testing you’ve already had and your main symptoms, our team can review your records, identify what’s missing (if anything), and map out the most efficient next steps—whether that’s further evaluation, fertility planning, or considering excision surgery as part of a fertility-focused strategy.

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What does a globular uterus mean on ultrasound?

A “globular uterus” on ultrasound means the uterus looks more rounded and bulky than the typical pear shape, often because the uterine muscle is enlarged. It’s a descriptive imaging term—not a diagnosis by itself—but it commonly shows up when adenomyosis is suspected.


Adenomyosis is when tissue similar to the uterine lining grows into the uterine muscle, which can make the uterus feel tender and look enlarged. Many people with this finding also have symptoms like painful periods, heavy or prolonged bleeding, pelvic pressure, or fertility challenges, though symptoms and imaging don’t always match.


If your report mentions a globular uterus, the next step is usually to interpret it alongside other ultrasound features (and sometimes MRI) and your specific symptoms and goals. Our team can help you make sense of the imaging language, evaluate for adenomyosis and common overlaps like endometriosis or fibroids, and map out options—from symptom control to fertility-focused planning and surgical treatment when appropriate.

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What does junctional zone thickening on MRI mean?

“Junctional zone thickening” on MRI means the inner muscle layer of the uterus (the junctional zone, right next to the uterine lining) looks thicker and often less uniform than expected. This finding is commonly associated with adenomyosis, a condition where endometrial-like tissue grows into the uterine muscle (myometrium) and can drive inflammation and pain.


It’s important to know that junctional zone thickening is not a definitive diagnosis by itself—it’s an imaging clue that needs to be interpreted alongside your symptoms (like painful periods, heavy bleeding, pelvic pain, or fertility challenges) and the rest of the MRI details. Sometimes thickening can be more pronounced in one area (suggesting focal adenomyosis/adenomyoma), and adenomyosis can also overlap with endometriosis, which can change the overall plan.


If your report mentions junctional zone thickening, our team can help you translate the exact wording into what it likely means for you—whether it supports adenomyosis, whether the pattern looks focal or diffuse, and what next steps make sense based on your goals (symptom relief, fertility, or both). Reach out to schedule a consultation so we can review your imaging and history together.

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What does “heterogeneous myometrium” mean on imaging?

A “heterogeneous myometrium” means the uterine muscle (the myometrium) looks uneven in texture on ultrasound or MRI instead of smooth and uniform. It’s a descriptive imaging term—not a diagnosis by itself—and it tells us there may be changes within the uterine wall that deserve a closer look.


One common reason this shows up is adenomyosis, where endometrial-like tissue grows into the uterine muscle and can create a patchy, mixed-appearance pattern (sometimes focal, sometimes more diffuse). Depending on the rest of the report, radiologists may also comment on related features such as junctional zone irregularity on MRI or other signs that increase (or decrease) confidence for adenomyosis.


If your report feels vague, that’s not uncommon—imaging can suggest adenomyosis but can’t always confirm it with certainty. Our team can review your symptoms alongside the details of your imaging (and, when needed, recommend the right next diagnostic step) to clarify what this finding likely means for your pain, bleeding, or fertility goals.

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Can adenomyosis cause chemical pregnancies?

Adenomyosis can be associated with fertility challenges, and for some patients it may contribute to very early pregnancy loss (often called a chemical pregnancy). While we can’t say adenomyosis is the only—or even the most common—cause of a chemical pregnancy, it can change the uterine environment in ways that may interfere with implantation and early embryo development, including increased inflammation within the uterine muscle and altered uterine contractions.


It’s also common for adenomyosis to overlap with endometriosis, and that overlap can add additional factors that may affect implantation and early pregnancy. If you’re experiencing recurrent chemical pregnancies—especially alongside heavy bleeding, painful periods, or pelvic pain—our team can help you evaluate whether adenomyosis (and/or endometriosis) may be part of the picture and what uterus-sparing options might make sense for your goals. You can explore more on our site or reach out to schedule a consultation so we can review your history and imaging and map out next steps.

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What tests are done after two miscarriages with endometriosis?

After two miscarriages, our goal is to look beyond a single “endo explanation” and map out all the factors that can affect implantation and early placental development. We start by reviewing your full history in detail (loss timing, symptoms, prior imaging, surgeries, cycle patterns, and any fertility treatments), because the pattern of your losses often guides what to test first. We typically include expertly interpreted pelvic imaging—often ultrasound and, when helpful, MRI—to look for endometriosis features (like endometriomas), adenomyosis, uterine shape issues, and other pelvic conditions that can coexist with endo.


Because endometriosis can overlap with immune, inflammatory, and hormonal drivers, we may also evaluate thyroid function and other endocrine factors, and consider autoimmune overlap when symptoms or history point that way. If your symptom picture suggests contributors outside the uterus and ovaries, we may broaden the workup to related conditions that can worsen inflammation or pelvic dysfunction, rather than stopping at a standard checklist. If you’d like, you can reach out to schedule a consultation so our team can tailor a miscarriage evaluation plan to your history and goals—and help you understand which findings are most actionable for your next steps.

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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

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Monday - Friday

Arroyo Grande, CA

154 Traffic Way, Arroyo Grande, CA 93420