General Gynecology · Pelvic Pain
Abstract
The objective of this study was to determine if the combination of tenderness-guided endovaginal ultrasound and digital pelvic exam (i.e. EVUS-assisted exam) for preoperative pain mapping, in cases without nodules or endometriomas, increases sensitivity/specificity for laparoscopic findings. This was a retrospective review of women with chronic pelvic pain ± infertility with preoperative pain mapping exam prior to laparoscopy (n = 97, 2006-7). Predictor variables (EVUS-assisted exam vs digital pelvic exam alone, for pain mapping) were coded as tender vs non-tender. Primary outcome was findings on laparoscopy (e.g. endometriosis or adhesions) and was coded as abnormal vs normal. We found that EVUS-assisted exam had greater sensitivity (0.81, 95% CI: 0.70-0.89) for abnormal laparoscopy compared with digital pelvic exam alone (0.58, 95% CI: 0.46-0.69) (McNemar's test, p < 0.001). Specificity was limited for both types of pain mapping (0.22, 95% CI: 0.08-0.44 for EVUS-assisted; and 0.39, 95% CI: 0.20-0.61 for digital), with no significant difference (p = 0.13). In conclusion, in the absence of nodules or endometriomas, EVUS-assisted exam increases sensitivity, but with no benefit in specificity, for prediction of abnormal laparoscopy.
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Mid-Cycle Pain in Endometriosis: Clinical Correlations and Potential Etiological Factors
Rojas HE et al., 2026 · Journal of women's health (2002)
To characterize differences between individuals with and without mid-cycle pain in a registry cohort with endometriosis. Prospective analysis of data from the Endometriosis Pelvic Pain Interdisciplinary Cohort Data Registry (Clinicaltrials.gov #NCT02911090) at a tertiary referral center in Western Canada. Three hundred forty-five individuals aged 18-49 years who: (1) had at least one episode of menstrual bleeding in the last 3 months, (2) attended a baseline initial visit, and (3) subsequently had surgery with histological confirmation of endometriosis between January 2018 and December 2023. Exclusion criteria included (1) previous hysterectomy; (2) hormonal suppressive therapy use in the last 3 months; and (3) missing data on mid-cycle pain, history of hormonal therapy use, or menstrual cycle regularity. N/A. Mid-cycle pain in the last month versus No mid-cycle pain in the last month. Of the 345 participants, 67% (n = 232) reported mid-cycle pain in the last month. Mid-cycle pain in the last month was significantly associated with higher mean Central Sensitization Inventory score (48 ± 17 versus 36 ± 16, p < 0.001) and more months of prior hormonal suppressive therapy use (58 [14-120] versus 26 [0-109], p = 0.012). Abnormal anatomy at the time of surgery (e.g., endometrioma, ovarian adhesions) was not associated with mid-cycle pain in the last month. In this endometriosis cohort at a tertiary referral center, most participants reported mid-cycle pain in the last month, which was associated with central sensitization but was not clearly related to endometriosis anatomical distortion.
Endometriosis, symptoms, and risk for depression and/or anxiety: a population-based retrospective study
Goodwin E et al., 2025 · BMC women's health · Free full text on PubMed Central
Endometriosis is a chronic and inflammatory condition that often presents with chronic pelvic pain, dysmenorrhea, and dyspareunia, thus having important effects on quality of life. There are two proposed hypotheses to describe the known association between endometriosis and depression and anxiety: (1) the disease hypothesis, where the inflammatory nature of endometriosis is driving increased risk for depression and anxiety; and (2) the pain hypothesis, where it is the painful symptoms underlying the increased risk. We aimed to shed further light on these two hypotheses by assessing the risk for depression and/or anxiety in three groups of patients pathologically assessed for endometriosis: symptomatic endometriosis patients (Symp Endo), symptomatic patients with no pathological endometriosis diagnosis (Symp No Endo), and asymptomatic endometriosis patients (Asymp Endo). This study included pathologically-confirmed endometriosis patients identified from the pathology records of Vancouver Coastal Health Authority between 2000 and 2008. These data were linked with population-based administrative health data for follow-up to 2017. Depression and anxiety were identified through diagnostics codes from health services use data and prescriptions for antidepressants. Bivariate analyses were performed to assess differences between groups. Cox proportional hazards models were run to generate hazard ratios for incident depression and/or anxiety between the groups. There were 2729 people in Symp Endo, 585 in Symp No Endo, and 326 in Asymp Endo. Symp No Endo was more likely than Symp Endo to be visiting a physician for pelvic pain and to be taking prescription-level pain medications (p < 0.001). After adjusting for several covariates, Symp No Endo had a significantly higher risk of incident depression and/or anxiety (adjusted HR: 1.23, 95% CI: 1.06-1.41) compared to Symp Endo. There was no statistically significant difference in risk of depression and/or anxiety between Symp Endo and Asymp Endo (adjusted HR: 0.94, 95% CI: 0.76-1.17). These results point toward the pain focused hypotheses as Symp No Endo patients were at higher risk for depression/anxiety than the Symp Endo group. However, the results also suggest the disease hypothesis is at play, because the Symp Endo and Asymp Endo groups were at the same level of risk for depression/anxiety.
Female Dyspareunia and the Relationship to Neurophysiologic Mechanisms: A Scoping Review
Cook E et al., 2026 · Journal of minimally invasive gynecology
This scoping review aims to evaluate recent studies that examine the relationship between dyspareunia and neurophysiologic factors, and to synthesize their results as it pertains to the development and treatment of introital/vulvar dyspareunia and deep dyspareunia A comprehensive search was conducted in PubMed (NLM), Embase (Elsevier), CINAHL (EBSCOhost), Web of Science (Clarivate), Psycinfo (ProQuest), and Cochrane Library (Wiley) to find peer reviewed studies written in English published in 2000 or later that discussed how neurophysiology is related to dyspareunia. Search terms: dyspareunia; painful intercourse; genito-pelvic pain; penetration disorder; neuropsychology; central nervous system sensitization; neur; central sensitization. A total of 1101 studies were screened and 108 were included in the review. Abstract and full text screening were performed by 4 authors. Articles were also excluded if they did not include an objective diagnostic tool or objective treatment outcome of dyspareunia. We included original peer-reviewed published research in the form of randomized control trials, cohort studies, case control studies, case series of greater than 20 participants, and systematic reviews. Multiple study types were noted: 22 randomized control trials, 9 prospective cohort studies, 3 retrospective cohort studies, 30 case control, 16 case series, 17 cross-sectional, and 11 systematic reviews. Of these articles, 72 focused on introital/superficial dyspareunia, 23 focused on deep dyspareunia, and 13 on both. Data was synthesized in text and table format, separated by type of dyspareunia (introital vs deep) and either etiology/diagnosis or treatment. There are complex neurophysiologic mechanisms that influence both introital and deep dyspareunia, highlighting the roles of peripheral and central sensitization, nerve fiber density, and neuroplasticity in this condition. There are several promising treatments, including TENS, botulinum toxin A, physical therapy, and various multimodal approaches; but further research is needed to establish standardized therapeutic guidelines.
Pain sensitivity questionnaire in endometriosis
Gentles AJ et al., 2025 · The journal of pain · Free to read
There is increasing recognition that nociplastic pain and central sensitization may play a role in endometriosis-associated pain. The Pain Sensitivity Questionnaire Minor (PSQ-M) evaluates subjective widespread pain sensitivity, and is linked to pain outcomes in chronic pain populations. However, evidence connecting the PSQ-M to central sensitization in endometriosis is limited. Using the Central Sensitization Inventory (CSI) as a comparison, this study compared the PSQ-M as a clinical proxy for central sensitization in endometriosis individuals. Data collected from 983 endometriosis participants (mean age of 34 years), between January 2020 and December 2022, were analyzed from a prospective registry. A significant but weak positive correlation was observed between PSQ-M and CSI scores (r=0.099, p<0.001). A significant but weak correlation was found between the number of central sensitivity syndromes and pelvic pain-related comorbidities with the PSQ-M (r=0.093, p<0.001), compared to a stronger correlation with the CSI (r=0.687, p<0.05). PSQ-M scores were not significantly associated with baseline (r=0.013, p=0.797) or post-operative (r=-0.046, p=0.801) quality-of-life. There was no change in the PSQ-M and a small change in CSI after endometriosis surgery, suggesting that surgical treatment of endometriosis does not directly address central sensitization. In conclusion, the PSQ-M may not be the optimal clinical proxy for central sensitization in endometriosis. This study evaluates the Pain Sensitivity Questionnaire - Minor (PSQ-M) as a proxy for central sensitization in endometriosis. The PSQ-M showed weak correlations with central sensitivity syndromes and pain scores and was not associated with post-surgical quality-of-life, suggesting it may not be the optimal tool for assessing central sensitization in endometriosis.
Related research
Correlation between endometriosis and pelvic pain
Porpora MG et al., 1999 · J Am Assoc Gynecol Laparosc
To evaluate the relationship between prevalence and severity of chronic pelvic pain (CPP) and stage, site, and type of endometriosis. Prospective, observational study (Canadian Task Force classification II-2). University Hospital. Of 90 consecutive women with biopsy-proved endometriosis, laparoscopy was performed in 69 for pelvic pain and in 21 for infertility or clinical and ultrasonographic suspicion of ovarian endometriosis. Preoperatively, using a 10-point visual analog scale, the severity of dysmenorrhea, CPP, and deep dyspareunia was assessed. During laparoscopy all visible endometriotic lesions were recorded and treated. MAIN Ten women (11.1%) had no pain; 72 had dysmenorrhea (mild in 13, moderate in 37, severe in 22); 55 had CPP (mild in 11, moderate in 25, severe in 19); and 39 deep dyspareunia (mild in 5, moderate in 31, severe in 3). The severity of dysmenorrhea significantly correlated with the presence and extent of pelvic adhesions (p = 0.004); the severity of CPP correlated with deep endometriosis on the uterosacral ligaments (p = 0.0001) and extent of pelvic adhesions (p = 0.02); and deep dyspareunia correlated with deep endometriosis on the uterosacral ligaments (p = 0.04). Total pain score significantly correlated with deep endometriosis on the uterosacral ligaments (p = 0.0001), peritoneal adhesions (p = 0.01), and extent of adnexal adhesions (p = 0.01). No significant correlation was found among revised American Fertility Society stage of endometriosis; presence and size of ovarian endometriomas; extent, type, and site of peritoneal lesions; and pain scores. By logistic regression analysis, the presence and intensity of total pain could be predicted simultaneously by the presence of deep endometriosis (p = 0.0001) and presence and extent of adnexal adhesions without cystic endometriosis (p = 0.01), and by the presence of ovarian endometrioma with periovarian adhesions (p = 0.03). Chronic pelvic pain was predicted by both deep endometriosis (p = 0.0001) and ovarian endometriomas with adnexal adhesions (p = 0.03). Deep dyspareunia was predicted simultaneously by deep endometriosis (p = 0.01) and an ovarian endometrioma with periovarian adhesions (p = 0. 008). Conclusion. Deep endometriosis, pelvic adhesions, and ovarian cystic endometriosis were independent predictors of pelvic pain. These data strongly suggest that it is not the size of ovarian cystic endometriosis but the association with adhesions that causes pelvic pain.
Laparoscopic inguinal exploration and mesh placement for chronic pelvic pain
Yong PJ et al., 2013 · JSLS : Journal of the Society of Laparoendoscopic Surgeons · Free full text on PubMed Central
Chronic pelvic pain affects 15% of women. Our objective was to evaluate empiric laparoscopic inguinal exploration and mesh placement in this population. Retrospective cohort with follow-up questionnaire of women with lateralizing chronic pelvic pain (right or left), ipsilateral inguinal tenderness on pelvic examination, no clinical hernia on abdominal examination, and ipsilateral empiric laparoscopic inguinal exploration with mesh placement (2003-2009). Primary outcome was pain level at the last postoperative visit. Secondary outcomes were pain level and SF-36 scores from the follow-up questionnaire. Forty-eight cases met the study criteria. Surgery was done empirically for all patients, with only 7 patients (15%) found to have an ipsilateral patent processus vaginalis (shallow peritoneal dimple or a deeper defect (occult hernia)). Of 43 cases informative for the primary outcome, there was pain improvement in 15 patients (35%); pain improvement then return of the pain in 18 patients (42%); and pain unchanged in 9 patients (21%) and worse in 1 patient (2%). Improvement in pain was associated with a positive Carnett's test in the ipsilateral abdominal lower quadrant (P = .024). Thirteen patients returned the questionnaire (27%), and the pain was now described as improved in 9 patients (69%), unchanged in 4 patients (31%), and worse in none. Three SF-36 subscales showed improvement (physical functioning, social functioning, and pain). In select women with chronic pelvic pain, empiric laparoscopic inguinal exploration and mesh placement results in moderate improvement in outcome. A positive Carnett's test in the ipsilateral abdominal lower quadrant is a predictor of better outcome.
Pain with orgasm in endometriosis: potential etiologic factors and clinical correlates
Ding A et al., 2024 · The journal of sexual medicine · Free full text on PubMed Central
Pelvic pain worsened by orgasm is a poorly understood symptom in patients with endometriosis. To assess the prevalence of pelvic pain worsened by orgasm in patients with endometriosis and explore its association with potential etiologic factors, including pelvic floor myalgia, uterine tenderness and adenomyosis, and central nervous system sensitization. An analysis was done of a prospective data registry based at a tertiary referral center for endometriosis. Eligible participants were patients aged 18 to 50 years who were referred between January 1, 2018, and December 31, 2019, diagnosed with endometriosis, and subsequently underwent surgery at the center. Clinical features were compared between participants reporting worsening pelvic pain with orgasm and those without worsening pain with orgasm, including patient-reported variables, physical examination findings, and anatomic phenotyping at the time of surgery. Pelvic floor myalgia and uterine tenderness were assessed by palpation on pelvic examination, adenomyosis by ultrasound, and central nervous system sensitization via the Central Sensitization Inventory (range, 0-100). Outcomes included pelvic or lower abdominal pain in the last 3 months that worsened with orgasm (yes/no). Among 358 participants with endometriosis, 14% (49/358) reported pain worsened by orgasm while 86% (309/358) did not. Pain with orgasm was significantly associated with pelvic floor myalgia (55% [27/49] vs 35% [109/309]; Cohen's h = 0.40, P = .01) and higher scores on the Central Sensitization Inventory (mean ± SD, 53.3 ± 17.0 vs 42.7 ± 18.2; Cohen's d = 0.60, P < .001) but not with uterine tenderness or adenomyosis. Other clinical features associated with pain with orgasm were poorer sexual health (higher scores: deep dyspareunia, Cohen's h = 0.60; superficial dyspareunia, Cohen's h = 0.34; and Female Sexual Distress Scale-Revised, Cohen's d = 0.68; all P < .05) and poorer mental health (higher scores: Patient Health Questionnaire-9, 12.9 ± 6.7 vs 9.1 ± 6.3, Cohen's d = 0.59, P < .001; Generalized Anxiety Disorder-7, 9.4 ± 5.6 vs 6.8 ± 5.5, Cohen's d = 0.48, P = .002). Anatomic findings at the time of surgery did not significantly differ between the groups. Interventions targeting pelvic floor myalgia and central nervous system sensitization may help alleviate pain worsened by orgasm in patients with endometriosis. A strength is that pain worsened by orgasm was differentiated from dyspareunia. However, pain with orgasm was assessed by only a binary question (yes/no). Also, the study is limited to a single center, and there were limited data on sexual function. Pelvic pain exacerbated by orgasm in people with endometriosis may be related to concurrent pelvic floor myalgia and central sensitization.
The role of laparoscopy in chronic pelvic pain: promise and pitfalls
Howard FM, 1993 · Obstet Gynecol Surv
Published studies relating to the usefulness of diagnostic and operative laparoscopy in women with chronic pelvic pain (CPP) were reviewed. This revealed that approximately 40 per cent of all laparoscopies were done for CPP. However, the definition of CPP was found to be nebulous and inconsistent, and that muddled definitive conclusions about patient diagnoses and treatments. The following definition of CPP was proposed: nonmenstrual pain of 3 or more months duration that localizes to the anatomic pelvis and is severe enough to cause functional disability and require medical or surgical treatment. A survey of published reports showed laparoscopically diagnosable abnormalities in 61 per cent of patients, compared with abnormalities in 28 per cent of women without CPP. Studies in adolescents were also reviewed and showed that adolescents with CPP also had significant laparoscopically diagnosed abnormalities, with 78 per cent showing some pathology, especially endometriosis (40 per cent). Endometriosis, pelvic adhesions, chronic pelvic inflammatory disease, and ovarian cysts were the diagnoses most commonly made via laparoscopy in CPP patients. The potential roles of each of these abnormalities in CPP were discussed, as well as the results of laparoscopic treatment of each disease. Laparoscopy was also found to have a limited role in women with CPP after hysterectomy or bilateral salpingo-oophorectomy, with usefulness in diagnosing and treating adhesions and residual ovary syndrome, although its role in ovarian remnant syndrome was uncertain. Overall, the data showed that less than 50 per cent of women with CPP were helped by diagnostic and operative laparoscopy, stressing the need for both physicians and patients to recognize that laparoscopy is neither the ultimate evaluation nor the panacea for CPP.