Can You Have Severe Endometriosis Without Pain?
Can you have severe or advanced endometriosis without any pelvic pain?
Yes. Pain intensity and endometriosis stage do not track together reliably: a 2025 systematic review and meta-analysis in the Journal of Minimally Invasive Gynecology found no significant difference in pain intensity between earlier-stage (rASRM I/II) and advanced-stage (III/IV) disease. Endometriosis is also found regularly in women who report no symptoms at all. The honest caveat is that this is a rule about overall staging, not about every finding — that same review found chronic pelvic pain was more frequent in advanced disease, and certain specific anatomic findings do show associations with specific pains.
Does endometriosis stage predict how much pain you feel?
Largely, no. The 2025 review pooled eight studies that used validated pain scales and found pain intensity did not differ significantly between rASRM stages I/II and III/IV. Dysmenorrhea carried the highest average intensity of the pain types studied and painful urination the lowest, but stage itself was not the deciding variable. This is counterintuitive, since it seems reasonable to assume more extensive disease would hurt more — and it is the single most important thing to understand about staging systems, which were built to describe anatomy and predict fertility outcomes, not to grade symptoms.
A 2026 study in the Journal of Clinical Medicine found the same pattern in a surgical cohort of 138 patients, all with advanced endometriosis: no significant correlation between overall pelvic pain intensity and rASRM stage. One exception showed up even there — pain during urination did differ by stage. And the 2025 review's own finding that chronic pelvic pain becomes more frequent (though not more intense) in advanced disease is worth holding alongside the headline. Stage is a poor predictor of how much pain you have; it is not completely unrelated to whether you have some.
How common is endometriosis without pain?
Common enough that it should never be treated as a rare exception. The clearest data come from laparoscopies done for reasons other than symptoms, most often tubal sterilization. Across those studies the reported prevalence varies widely with the population studied — a review of the sterilization literature described a range from about 2% to just over 40%, and one series of 465 sterilizations found endometriosis in about 12% overall and about 10% of parous women who had no symptoms at all.
A 2025 systematic review and meta-analysis in the Indian Journal of Medical Research pooled nine studies of asymptomatic women and estimated prevalence at 23% (95% CI 19–26). Heterogeneity across those studies was very high, so treat the pooled figure as an order of magnitude rather than a precise number. The direction, though, is not in doubt: a meaningful share of women who have endometriosis — including some with more extensive disease — simply do not have the symptoms most people associate with it.
Does the location of lesions matter more than the stage?
This is where the picture gets more precise, and it is worth being honest about rather than oversimplifying in the other direction. Where lesions sit appears to matter more than how the disease is staged overall. The 2026 Journal of Clinical Medicine cohort found that while overall rASRM stage did not correlate with general pain levels, specific anatomic compartments under the #ENZIAN classification were associated with specific pain types — pain during urination, during bowel movements, and during intercourse.
Two findings in particular carry more pain signal than stage does. A 2020 ultrasound study in BMC Research Notes reported that painful intercourse was more common in women with stenosis of the pouch of Douglas (the posterior cul-de-sac) than in women without it, and that severe pain was relatively more frequent in that group; in a separate surgical series, complete obliteration of that space was associated with worse deep pain during intercourse than partial obliteration. A 2024 prospective study of 150 women in Cureus similarly found ovarian endometriomas and deep infiltrating endometriosis to be independent predictors of higher pain scores.
What that means practically: the broad, reassuring point that no pain does not mean no significant disease holds up well. But it is not an absolute rule. Someone with cul-de-sac involvement or deep infiltrating disease and no pain is less typical than someone with superficial, early-stage disease and no pain — not impossible, just less common. Our pieces on what a diagnostic laparoscopy involves after recurrent pregnancy loss and how to use the first 90 days after excision surgery cover how these anatomic findings get diagnosed and what recovery looks like.
Why does this matter if you are trying to conceive?
Because it changes what counts as a reason to look. If pain is not a reliable marker of whether disease is present or how extensive it is, then "I don't have bad pelvic pain" is not a good reason to skip an endometriosis workup when there is another indication — recurrent pregnancy loss, a suspicious ultrasound finding, or infertility with no explanation. A 2024 systematic review in Reproductive BioMedicine Online found endometriosis at diagnostic laparoscopy in 44% of women carrying a diagnosis of unexplained infertility, and roughly three-quarters of those lesions were minimal or mild — exactly the disease least likely to announce itself with pain or show up on imaging.
That is a different question from whether surgery is warranted, which belongs to a reproductive surgeon. The point is narrower: absence of pain is weak evidence of absence of disease, so it should not be the thing that closes the investigation. On Long Island we see this pattern often in women who were told for years that their periods "weren't bad enough" for endometriosis to be on the list.
So what should you take from this if you have no pain?
Pain severity and endometriosis severity do not line up reliably at the level of overall stage, and a substantial share of women with endometriosis have no pelvic pain at all. The more precise version is that specific anatomic locations — the posterior cul-de-sac, deep infiltrating lesions, endometriomas — carry more pain association than staging does, so this is not an exception-free rule. But the core point holds: a lack of pain is not a reliable reason to rule out significant endometriosis, especially when another clinical indication for evaluation already exists. Here in Huntington, we see patients navigate this exact confusion often, usually when a fertility concern surfaces a suspected endometriosis finding in someone with no pain history at all. Our PCOS and endometriosis care page explains how we approach evaluation in cases like this, and what an endometriosis workup looks like when you are trying to conceive over 35 covers the testing sequence in more detail. More on that here: when endometriosis may not be the only reason IVF keeps failing.
This article is for general educational purposes and isn't a substitute for individualized guidance from your OB-GYN or a reproductive surgeon. Any decision about further evaluation or surgical consultation for suspected endometriosis should be made with your care team.
East to West Fertility is a metabolic and immune-focused fertility clinic in Huntington, Long Island, serving patients across Long Island, NYC, and beyond. Learn more about our Metabolic & Immune Fertility Evaluation or call 631-416-4940.
References:
- Alves J, et al. "Is Endometriosis Staging Related to the Type and Intensity of Patients' Complaints? A Systematic Review and Meta-Analysis." Journal of Minimally Invasive Gynecology, 2025. doi:10.1016/j.jmig.2025.11.014 (PMID 41338448).
- "Correlation Between Pain Intensity in Different Locations and Intraoperative Stage of Endometriosis According to rASRM and #ENZIAN Classification." Journal of Clinical Medicine, 2026;15(7):2725. doi:10.3390/jcm15072725.
- "A systematic review on the prevalence of endometriosis in women." Indian Journal of Medical Research, 2025 (asymptomatic women: 23%, 95% CI 19–26).
- "Relationship between the severity of endometriosis symptoms (dyspareunia, dysmenorrhea and chronic pelvic pain) and the spread of the disease on ultrasound." BMC Research Notes, 2020. doi:10.1186/s13104-020-05388-5.
- "Assessment of Pain in Endometriosis: A Radiologic Perspective on Disease Severity." Cureus, 2024. doi:10.7759/cureus.65649.
- "The prevalence of endometriosis in unexplained infertility: a systematic review." Reproductive BioMedicine Online, 2024. doi:10.1016/j.rbmo.2024.103848.
- Vercellini P. "Endometriosis: What a Pain It Is." Seminars in Reproductive Endocrinology, 1997;15(3). doi:10.1055/s-2008-1068755.
