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Do You Have Endometriosis and Fear Long COVID?

What the numbers suggest—and how to protect your energy, function, and care access

By Dr Steven Vasilev
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If you live with endometriosis, you already know what it’s like to have symptoms minimized, misunderstood, or mislabeled as “stress.” So it makes sense if the idea of long COVID feels especially scary: persistent fatigue, brain fog, sleep disruption, body pain, shortness of breath, and worsening day-to-day function can look like (or pile onto) the chronic burden you may already carry.


Recent evidence suggests there may be a real overlap: people with endometriosis appear more likely to report long COVID than people without endometriosis. This doesn’t mean you’re destined to develop long COVID—or that endometriosis “causes” it. But it does mean your history of endometriosis may be a useful flag for taking post-COVID symptoms seriously and getting help earlier rather than later.


Below is what these early numbers mean in plain language, how to interpret them for your life, and what to do if you’re dealing with ongoing symptoms after COVID.


What this evidence actually means for you (without the hype)


When researchers pooled the results of two large observational studies (over 216,000 people total), they found that having endometriosis was linked with a higher chance of long COVID.


Here are the two ways the results were presented:

  • Relative risk: people with endometriosis had about a 41% higher relative risk of long COVID than those without endometriosis (pooled RR 1.41).
  • Absolute numbers: long COVID was reported in about 16.2% of people with endometriosis versus about 10% of people without endometriosis.


That “relative” number (41% higher risk) sounds dramatic, but the “absolute” difference is often more helpful for your personal decision-making. Think of it this way: if 10 out of 100 people without endometriosis report long COVID, about 16 out of 100 people with endometriosis report long COVID in these datasets. That’s a meaningful difference—especially if you’re already stretched thin—but it’s not a guarantee.


Also important: the authors themselves caution that this is a modest association on an individual level (the risk estimate is under 1.5), even though it’s statistically very strong. Big datasets can make small differences look “very significant,” so your lived experience and your individual risk factors still matter.


Does this mean endometriosis causes long COVID?


No! This evidence cannot prove cause-and-effect.


These were observational studies, which means they can detect an association but can’t tell us whether:

  • endometriosis makes long COVID more likely,
  • long COVID makes endometriosis symptoms more likely to be recognized or documented,
  • or whether shared risk factors (like immune, inflammatory, hormonal, or socioeconomic factors) influence both.


What you can use this for is practical planning: if you have endometriosis and you notice symptoms lingering after COVID, you have more justification to push for follow-up rather than being told to “wait it out.”


What counts as long COVID (and what symptoms to watch for)


Definitions vary, which is part of why long COVID can be confusing and hard to get treated. Some studies look at symptoms lasting 4+ weeks, some 8+ weeks, and some focus on ongoing symptoms over time.


In one of the included datasets, endometriosis was linked with higher risk across multiple time cutoffs (4 weeks, 8 weeks, and “ongoing symptoms”). In real life, what matters is this: if symptoms persist and interfere with your function, it’s reasonable to seek assessment—even if you’re not at a specific week number yet.


Commonly reported long COVID symptoms include:

  • fatigue and post-exertional crashes (feeling worse after physical or mental effort)
  • cognitive issues (“brain fog,” slowed processing, memory problems)
  • sleep disturbance
  • muscle or joint pain
  • shortness of breath, chest tightness, palpitations
  • headaches, dizziness, new anxiety/depression symptoms

If you already live with endometriosis, you may also notice these symptoms interacting with your baseline: pain flares may feel harder to recover from, sleep disruption may worsen pain sensitivity, and fatigue can make it harder to keep up with pelvic floor therapy, movement, meal prep, or work accommodations.


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Why this overlap can hit endometriosis patients especially hard


Even if the increased risk is “modest,” the impact may be outsized when you’re already managing a chronic condition. Endometriosis often comes with:

  • long diagnostic delays and care barriers
  • chronic pain and fatigue that can limit energy reserves
  • higher rates of mood symptoms and sleep disruption (often driven by pain, not weakness)
  • medication juggling (hormonal suppression, pain meds, GI meds) and side effects

When persistent post-viral symptoms are added on top, the total burden can feel crushing. The most important practical implication of this research is not panic—it’s permission and leverage: you deserve thorough evaluation and symptom support if you’re not bouncing back after COVID.


What about adenomyosis?


You may see adenomyosis mentioned alongside endometriosis in discussions about inflammation and immune pathways. But here’s the key point for your decision-making:

This meta-analysis did not include adenomyosis-specific studies.

So you should not assume the same risk numbers apply to adenomyosis. If you have adenomyosis (with or without endometriosis) and you’re dealing with persistent post-COVID symptoms, your symptoms still deserve care—but the evidence base for adenomyosis specifically isn’t there yet.


If you have endometriosis and you get COVID: what can you do?


You can’t “willpower” your way out of long COVID. But you can put strategies in place that reduce the chance you’ll be dismissed and increase the chance you’ll get timely help.


Practical takeaways you can use this week

  1. Track your baseline and your change. If you get COVID (or recently had it), write down what “normal” looked like for you beforehand: fatigue level, pain days per week, sleep quality, ability to work/parent/exercise. Then track what changed and for how long. This is powerful in appointments.
  2. Aim for early follow-up if symptoms persist past a few weeks—especially if function is dropping. You don’t need to wait until you’re incapacitated to ask for assessment.
  3. Protect your pacing. If you notice you crash after activity, don’t let anyone shame you into “pushing through.” A common long-COVID pattern is post-exertional symptom worsening. Respecting your energy limits can prevent spirals.


Questions to ask your doctor (bring these to an appointment)

  • “Given my endometriosis history and persistent symptoms after COVID, can we document possible post-COVID condition and make a plan?”
  • “What medical causes should we rule out first (anemia/iron deficiency, thyroid issues, B12, sleep disorders, asthma, dysautonomia, etc.)?”
  • “What symptom treatments can we try now while we monitor recovery—sleep support, pain management adjustments, nausea/GI support, physical therapy, or breathing rehab?”
  • “Can you refer me to a long COVID clinic or rehabilitation service if symptoms persist?”
  • “Can we discuss workplace/school accommodations while I’m recovering?”


(If you’ve been medically gaslit before, it can help to bring a one-page symptom timeline and explicitly state: “My goal is function—work, self-care, mobility—not just a normal test result.”)


Red flags: when to seek urgent care


Seek urgent evaluation if you have new or worsening chest pain/pressure, severe shortness of breath, fainting, one-sided weakness, confusion, or any symptom that feels dangerous or rapidly escalating. Persistent symptoms deserve care; emergency symptoms deserve immediate care.


Reality check: what we still don’t know


This evidence is helpful—but limited. Only two observational studies were available for the pooled estimate, so we still don’t know:

  • whether the association holds across more diverse populations and healthcare systems
  • how severity of endometriosis, surgery history, hormonal suppression, or comorbid conditions change risk
  • which long COVID symptom clusters are most common in endometriosis patients
  • whether specific prevention or rehabilitation strategies work better in this group

So don’t use this to blame your body or assume the worst. Use it as a tool: if you’re not recovering, you’re not imagining it—and you’re not alone.

References

  1. Vallée A, Arutkin M, Ceccaldi PF, Feki A, Ayoubi JM. Long COVID and endometriosis: a systematic review and meta-analysis. BMC Women's Health. 2025.. DOI: 10.1186/s12905-025-03761-9

Quick Answers

How rare is endosalpingiosis?

Endosalpingiosis is generally considered uncommon, but “how rare” it is depends heavily on who’s being studied and how it’s found. Many cases are discovered incidentally on pathology—meaning tissue is identified under the microscope after surgery done for other reasons—so it’s likely underrecognized in the general population. In other settings (like surgical cohorts), it may appear more often simply because more tissue is being sampled and examined carefully.


What matters most for patients is that endosalpingiosis can be confused with endometriosis on imaging or even at surgery, yet it doesn’t always behave the same way clinically. If you’ve been told you have endosalpingiosis and you also have pelvic pain, bowel/bladder symptoms, or fertility concerns, our team can help interpret what that finding means in the context of your symptoms and operative/pathology reports. You’re welcome to explore our educational content on related endometriosis and uterine conditions, and reach out to schedule a consultation if you want a personalized plan.

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Can endometriosis cause arthritis-like joint pain?

Yes—endometriosis can be associated with arthritis-like joint pain in some people, even though joint pain isn’t considered a classic “core” symptom. Endometriosis can drive chronic inflammation and immune dysregulation, and that whole-body inflammatory state may show up as aching, stiffness, or flares that feel similar to inflammatory arthritis. Some patients also notice joint symptoms that cycle with their period or worsen during broader endometriosis flares.


At the same time, endometriosis doesn’t “equal” autoimmune arthritis, and an association doesn’t prove that one causes the other. Research suggests higher rates of certain autoimmune conditions in people with endometriosis—including inflammatory diseases that can affect joints—so persistent joint pain deserves a full-picture evaluation rather than being automatically attributed to pelvic disease alone. If you’re dealing with pelvic pain plus joint symptoms, our team can help you sort out what fits endometriosis, what may be a related immune condition, and how that affects your treatment plan, including whether excision surgery and coordinated integrative support make sense for you.

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How does estrogen affect the endometrium?

Estrogen is one of the main hormones that drives endometrial growth. In the first half of the menstrual cycle, rising estrogen signals the endometrium to thicken and rebuild after a period, preparing the uterus for a possible pregnancy. It also influences the local immune and inflammatory environment in the uterus, which is part of why hormonal shifts can change bleeding patterns and pain.


When estrogen’s growth signals are strong—and progesterone’s “calming” effect is weaker than expected (often described as progesterone resistance)—the endometrium can behave in a more persistently inflamed, reactive way. This hormone–inflammation pattern is especially relevant in estrogen-dependent conditions like adenomyosis and endometriosis, where tissue similar to the endometrium can contribute to ongoing symptoms. If you’re trying to make sense of heavy bleeding, severe cramping, or cycle-linked pelvic pain, our team can help you connect the hormonal biology to what you’re feeling and review next steps for diagnosis and treatment.

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What does a frozen uterus mean with endometriosis?

A “frozen uterus” isn’t a separate diagnosis—it’s a descriptive term surgeons use when the uterus is essentially stuck in place because endometriosis-related inflammation has caused dense scarring (adhesions). Instead of the uterus moving freely, it may be tethered to nearby structures like the bowel, bladder, ovaries, or pelvic sidewall, sometimes pulling the uterus into an abnormal position and making pelvic anatomy hard to distinguish.


This finding often suggests more advanced disease, such as deep infiltrating endometriosis and/or significant adhesions from prior inflammation or surgery, and it can help explain symptoms like deep pelvic pain, painful sex, bowel or bladder symptoms, or pain that doesn’t match what a routine exam shows. In these cases, surgery is less about “burning spots” and more about carefully restoring normal anatomy—freeing organs, protecting ureters and bowel, and removing endometriosis at its roots. If you’ve been told your uterus is “frozen,” our team can help you understand what that implies for imaging, surgical planning, and which adjacent organs may need to be evaluated as part of a complete excision strategy.

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What are peritoneal pockets in endometriosis?

Peritoneal pockets are small “indentations” or fold-like defects in the peritoneum—the thin lining that covers the pelvic organs and inner abdominal wall. In endometriosis surgery, we may see these pockets as tucked-in areas or little pits in the peritoneal surface, and they can be associated with superficial peritoneal endometriosis or early/developing disease patterns.


These pockets matter because endometriosis doesn’t always look like obvious black or red implants; it can hide within subtle anatomic changes, scarring, or altered peritoneal contours. In the operating room, careful inspection and technique are important so that disease within or around a peritoneal pocket isn’t missed or only treated on the surface. If you’ve been told you have “peritoneal pockets,” our team can help you understand what that finding may mean in your case—based on your symptoms, imaging, and whether deeper structures (like bowel, bladder, or ureters) could also be involved.

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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.

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