{"title":"Sentinel lymph node biopsy in low- and intermediaterisk endometrial carcinoma.","authors":"Christos Iavazzo, Ioannis D Gkegkes","doi":"10.5468/ogs.25050","DOIUrl":"10.5468/ogs.25050","url":null,"abstract":"","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"244-245"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Journey of infertile couples: scoping the barriers for infertility care among infertile women in Morocco.","authors":"Meriem Ouadrhiri, Chaymae Rochdi, Rachida Archou, Mounia Amazian, Mustapha Boucetta, Nawal Mouhoute, Nisrine Mamouni, Kamelia Amazian","doi":"10.5468/ogs.24259","DOIUrl":"10.5468/ogs.24259","url":null,"abstract":"<p><strong>Objective: </strong>The World Health Organization recognized infertility as a disease and emphasized universal access to high-quality treatment. Nevertheless, inequality and inequity in infertility care are pervasive in Morocco, access to care is hindered by multiple potential barriers delaying treatment seeking and management. This study aimed to explore factors and barriers to assisted reproductive technology (ART) among infertile women in Morocco.</p><p><strong>Methods: </strong>This is a cross-sectional analytical study relies on prospective data collected through a standardized questionnaire, was carried out in January-June 2023. The target population concerned 110 infertile women attending a private clinic in Morocco.</p><p><strong>Results: </strong>Women who experienced infertility in Morrocco have demonstrated several barriers including: cost and lack of financial means (90%) and distance from fertility care (80%). On bivariate analysis findings suggest there are multifactorial factors that influence access to ART: the age, marriage span, monthly household income, duration of infertility, and education level and profession. On multivariable logistic analysis, age over 35 years old (odds ratio [OR], 3.36; 95% confidence interval [CI], 1.07-10.65; P=0.004) and the duration of infertility over 10 years (OR, 5.59; 95% CI, 1.24-25.24; P=0.003) remained significantly associated with women who had undergone ART.</p><p><strong>Conclusion: </strong>This study has demonstrated that infertile women confront economic barriers, social pressure, and constraints related to health systems. Women over the age of 35 with the duration of infertility exceeding 10 years are certainly making more considerable economic efforts to access ART. Policy-makers must to take into account these barriers and factors to ensure efficient access to ART.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"186-197"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104618/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lidan Liu, Ming Liao, Bo Liu, Qianyi Huang, Huimei Wu, Mujun Li
{"title":"Causal association of cathepsins with female infertility: a bidirectional Mendelian randomization analysis.","authors":"Lidan Liu, Ming Liao, Bo Liu, Qianyi Huang, Huimei Wu, Mujun Li","doi":"10.5468/ogs.24254","DOIUrl":"10.5468/ogs.24254","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to systematically evaluate potential causal relationships between nine cathepsins and female infertility using Mendelian randomization (MR).</p><p><strong>Methods: </strong>.</p><p><strong>Methods: </strong>A bidirectional MR analysis was conducted utilizing single nucleotide polymorphisms as instrumental variables to investigate the potential causal effects between nine cathepsins and female infertility. Genetic data on female infertility were sourced from the FinnGen study, and cathepsin-related data were obtained from genome-wide association studies datasets of European ancestry.</p><p><strong>Results: </strong>Elevated levels of cathepsin E were significantly and inversely associated with the risk of female infertility, suggesting a potential protective role. This finding was further supported by multivariable MR analysis. However, no significant associations were observed between the other eight cathepsins and female infertility.</p><p><strong>Conclusion: </strong>This study represents the first systematic MR analysis to identify a potential protective effect of cathepsin E on female infertility.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"237-243"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104616/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hee-Yeong Jung, Tae-Ran Kim, Gwan Hee Han, Jin-Sung Yuk
{"title":"Relation between pelvic organ prolapse and menopausal hormone therapy: nationwide cohort study.","authors":"Hee-Yeong Jung, Tae-Ran Kim, Gwan Hee Han, Jin-Sung Yuk","doi":"10.5468/ogs.24071","DOIUrl":"10.5468/ogs.24071","url":null,"abstract":"<p><strong>Objective: </strong>To analyze the relationship between pelvic organ prolapse (POP) and menopausal hormone therapy (MHT).</p><p><strong>Methods: </strong>This retrospective cohort study used Korean National Health checkup and insurance data from 2002 to 2019. Women who used MHT for more than 6 months between 2002 and 2011 were included in the MHT group; postmenopausal women with no MHT use comprised the non-MHT group.</p><p><strong>Results: </strong>In the non-MHT group, there were 1,001,350 women, while the MHT group had 353,206 women. Tibolone (adjusted hazard ratio [aHR], 0.87; 99% confidence interval [CI], 0.818-0.926) and combined estrogen plus progestin by the manufacturer (CEPM) (aHR, 0.821; 99% CI, 0.758-0.89) were associated with reduced POP risk. The other oral MHT groups and the transdermal estrogen group showed no significant difference in POP risk compared with the non-MHT group (other oral MHT: aHR, 1.045; 99% CI, 0.941-1.161) (transdermal estrogen: aHR, 1.252; 99% CI, 0.731-2.145). Lower body mass index (BMI) (<18.5) was associated with reduced POP risk (aHR, 0.822; 99% CI, 0.698-0.968), while a BMI between 23 and 29.9 was associated with increased risk (BMI 23-24.9: aHR, 1.143; 99% CI, 1.088-1.2) (BMI 25-29.9: aHR, 1.173; 99% CI, 1.12-1.228). All parities had a higher POP risk than parity 1 (parity 0 or no response: aHR, 1.785; 99% CI, 1.589-2.005; parity 2: aHR, 1.434; 99% CI, 1.292-1.592; parity ≥3: aHR, 1.916; 99% CI, 1.712-2.144).</p><p><strong>Conclusion: </strong>Tibolone and CEPM use were associated with reduced POP risk in postmenopausal women. Other MHT types showed no significant association with POP.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"210-220"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104620/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143701734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chaymae Rochdi, Meriem Ouadrhiri, Ibtissam Bellajdel, Hafsa Taheri, Hanane Saadi, Ahmed Mimouni, Mohammed Choukri
{"title":"Epidemiology and occupational risk factors of male infertility based on 3,025 patients in Eastern Morocco during 2021-2023: a cohort study.","authors":"Chaymae Rochdi, Meriem Ouadrhiri, Ibtissam Bellajdel, Hafsa Taheri, Hanane Saadi, Ahmed Mimouni, Mohammed Choukri","doi":"10.5468/ogs.24297","DOIUrl":"10.5468/ogs.24297","url":null,"abstract":"<p><strong>Objective: </strong>The objective of our study was to characterize the sperm parameters of men consulting for infertility in our fertility center.</p><p><strong>Methods: </strong>The study included 3,025 patients investigated from September 2021 to July 2023. Demographic data, infertility risk factors, and the primary or secondary nature of infertility were recorded for each patient. The sperm parameters were analyzed according to World Health Organization (WHO) criteria (2021).</p><p><strong>Results: </strong>The average age of the patients was 40 years. The average duration of infertility was 5.5 years. Primary infertility was noted in 2,736 patients (88.97%). The most common risk factors for infertility were occupational exposure, followed by varicocele. Lifestyle factors associated with male infertility included smoking (24.29%), alcohol consumption (12.49%), and high temperature exposure (30.08%). Spermogram abnormalities were observed in 78.71% of cases. Spermocytogram abnormalities were found in 63.1% of cases. Sperm count, morphology, total motility, and vitality below WHO (2021) reference values were found in 25.60%, 34.13%, 32.29%, and 62.46% of the analyzed samples, respectively. Seminal fluid analysis revealed oligozoospermia in 29.07% of cases, asthenozoospermia in 24.68%, and azoospermia in 17.56%. Oligo-astheno-necrospermia was the most frequently observed combined abnormality (10.0%).</p><p><strong>Conclusion: </strong>This study showed a high rate of abnormal semen quality in male partners of infertile couples. Male infertility is often multifactorial and results in quantitative and/or qualitative sperm abnormalities.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"198-209"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104619/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143650786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Namkung Jeong, Angela Cho, Yu-Jin Koo, Jun-Woo Ahn, Hyuntae Park, Eun Sil Lee, Sang Wook Yi, Won Duk Joo, Sang-Hoon Lee, Jae Kwan Lee, Sa Ra Lee
{"title":"Clinical practice in office hysteroscopy.","authors":"Namkung Jeong, Angela Cho, Yu-Jin Koo, Jun-Woo Ahn, Hyuntae Park, Eun Sil Lee, Sang Wook Yi, Won Duk Joo, Sang-Hoon Lee, Jae Kwan Lee, Sa Ra Lee","doi":"10.5468/ogs.24234","DOIUrl":"10.5468/ogs.24234","url":null,"abstract":"<p><p>Hysteroscopy is particularly valuable for the diagnosis of uterine cavity abnormalities through direct visualization. The development of office hysteroscopy has expanded the range of diagnostic and surgical procedures available. These detailed guidelines include patient counseling and the selection and setting of office hysteroscopy, including room, equipment, and medical staff. Analgesia or local anesthesia is often required in selective office hysteroscopy cases. Cervical dilation and preparation using medical or mechanical methods are required for most diagnostic hysteroscopic procedures. Methods for optimizing visualization and choosing suitable distension media are important for a successful office hysteroscopy. It is crucial to adhere to guidelines to prevent complications, such as vasovagal syncope, cervical trauma, uterine perforation, fluid overload, and embolism. Vaginoscopy can be a good alternative option for alleviating pain, especially in cases where the insertion of a vaginal speculum is expected to be challenging.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"175-185"},"PeriodicalIF":2.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12104621/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143781417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Soo Jin Park, Ki Wook Yun, Ji Yeon Han, Sung Woo Kim, Jae Hyeon Park, Hoon Kim, Eun Hwa Choi, Seung-Yup Ku
{"title":"Microbiological and clinical characteristics of vulvovaginitis in premenarcheal and postmenarcheal girls in a tertiary center in South Korea.","authors":"Soo Jin Park, Ki Wook Yun, Ji Yeon Han, Sung Woo Kim, Jae Hyeon Park, Hoon Kim, Eun Hwa Choi, Seung-Yup Ku","doi":"10.5468/ogs.24215","DOIUrl":"10.5468/ogs.24215","url":null,"abstract":"<p><strong>Objective: </strong>To analyze the microbiological and clinical characteristics of vulvovaginitis in girls, distinguishing between the premenarcheal and postmenarcheal groups in a tertiary center in South Korea.</p><p><strong>Methods: </strong>This retrospective cohort study included 195 patients under 20 years of age diagnosed with vulvovaginitis at a tertiary hospital between 2014 and 2023. The patients were categorized into premenarcheal (n=95) and postmenarcheal (n=100) groups. Data on initial symptoms, microbial cultures, and treatment methods were analyzed.</p><p><strong>Results: </strong>The most common initial symptom was vaginal discharge, reported in 63.1% of cases. Culture results showed a 51.3% positivity rate for any microorganism, with a prevalence of gram-negative rods (32.8%) and gram-positive cocci (14.4%). The most frequently isolated microorganisms were Escherichia coli (17.9%), Candida albicans (7.7%), and Enterococcus faecalis (6.7%). Gram-negative rods were more common in the premenarcheal group (37.1% vs. 25.0%; p=0.01). No significant differences were observed in the prevalence of gram-positive cocci and Candida species between the two groups (16.8% vs. 12.0%, p=0.22; 6.3% vs. 13.0%, p=0.09; respectively). The susceptibilities of grampositive microorganisms to penicillin, oxacillin, clindamycin, vancomycin, and tetracycline were 58.8%, 58.3%, 94.7%, 100.0%, and 73.7%, respectively. The susceptibilities of gram-negative microorganisms to amoxicillin/clavulanic acid, ciprofloxacin, ceftriaxone, and nitrofurantoin were 89.3%, 85.3%, 76.0%, and 100.0%, respectively.</p><p><strong>Conclusion: </strong>This study identified differences in the microbial profiles associated with vulvovaginitis between premenarcheal and postmenarcheal girls. Age-specific and history-based clinical approaches tailored to menarcheal status are warranted to improve the management and outcomes of pediatric and adolescent vulvovaginitis.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"163-173"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11976919/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143411204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Farzaneh Motafeghi, Mina Amiri, Mahsa Noroozzadeh, Fahimeh Ramezani Tehrani
{"title":"The impact of GABA and GABAergic pathway in polycystic ovary syndrome: a systematic review.","authors":"Farzaneh Motafeghi, Mina Amiri, Mahsa Noroozzadeh, Fahimeh Ramezani Tehrani","doi":"10.5468/ogs.24255","DOIUrl":"10.5468/ogs.24255","url":null,"abstract":"<p><p>Emerging evidence indicates that dysfunction of the gamma-aminobutyric acid (GABA)ergic pathway may contribute to the pathophysiology of polycystic ovary syndrome (PCOS), and GABA demonstrates potential in the management of PCOS symptoms. This systematic review aimed to determine the role of the GABAergic pathway in PCOS and evaluate the impact of GABA on improving the condition. Web of Science, Embase, Scopus, Cochrane, and PubMed databases were systematically searched for experimental studies, clinical trials, animal studies, and cellular investigations. The search was conducted for relevant English-language manuscripts, published up to February 2024, using keywords, such as \"polycystic ovary syndrome\", PCOS, \"gamma-aminobutyric acid\" and GABA. Quality assessment of the included studies was performed using the Cochrane Collaboration's tool and the Newcastle-Ottawa scale. The results indicate that GABAergic dysfunction adversely affects gonadotrophin-releasing hormone neuronal activity, leading to hormonal imbalances and reproductive issues. Prenatal androgen exposure and kisspeptin signaling influence GABAergic transmission to GnRH neurons, thereby linking GABA to the pathogenesis of PCOS. Additionally, GABAergic signaling affects peripheral tissues relevant to PCOS, including the immune system, gut-brain axis, and ovaries. GABA supplementation has demonstrated potential benefits in enhancing metabolic and reproductive health, such as reducing insulin resistance and modulating sex hormone levels, as supported by animal models and clinical studies involving females with PCOS. The GABAergic signaling pathway may represent a promising therapeutic target for the management of PCOS. Nevertheless, further studies are required to validate these findings and deepen our understanding of the role of GABA in the pathogenesis and treatment of PCOS.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"93-108"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11976924/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143400207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Significance of sentinel lymph node biopsy in low- and intermediate- risk endometrial cancer: a study at tertiary care centre, India.","authors":"Kanika Batra Modi, Arnika Kumari Kashyap, Manvika Chandel, Komal Agrawal, Harit Kumar Chaturvedi","doi":"10.5468/ogs.24182","DOIUrl":"10.5468/ogs.24182","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the incidence of sentinel lymph node (SLN) metastasis observed in patients with presumed low- and intermediate-risk endometrial cancer (EC) and change in stage and adjuvant therapy resulting from SLN analysis. Secondary objectives include assessing the rates of detection of SLN using indocyanine green (ICG) dye and complication rates.</p><p><strong>Methods: </strong>Between March 2017 and December 2023, 210 patients were included in the study. A total of 412 SLNs were detected in 210 patients using intracervical ICG dye injections.</p><p><strong>Results: </strong>The pathologically confirmed detection rate was >95%. A total of 25 patients (11.9%) exhibited positive sentinel metastasis detected through pathological and immunohistochemical analysis, with in five (2.4%), micro-metastasis in six (2.9%), and macro-metastasis in 14 patients (6.7%). SLN metastasis with micro- and macro-metastases changed to stage III; therefore, adjuvant therapy was administered in the form of chemotherapy and radiation therapy. Of the 210 patients, 186 (88.5%) remained at low and intermediate risk after the final histopathological analysis. The other 24 patients exhibited SLN metastasis, high-grade EC, higher-stage detection, or high risk on molecular profiling.</p><p><strong>Conclusion: </strong>A change in stage was observed in 11.9% of patients, and adjuvant therapy was administered to 20 patients, of whom 16 received adjuvant therapy based solely on SLN involvement (in the form of micro- and macro-metastasis), thus preventing undertreatment. Overtreatment was reduced in six patients who were classified as high-grade and non-endometrioid types with SLN metastases.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"148-154"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11976918/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142855427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coronavirus disease vaccine linked menstrual changes: mobile application study.","authors":"Sung Eun Kim, Joseph J Noh, Yoo-Young Lee","doi":"10.5468/ogs.24104","DOIUrl":"10.5468/ogs.24104","url":null,"abstract":"<p><strong>Objective: </strong>Since coronavirus disease 2019 (COVID-19) vaccination began, abnormal uterine bleeding (AUB) has occurred at a high rate. This study assessed the association between COVID-19 vaccination and AUB.</p><p><strong>Methods: </strong>In this retrospective cohort study, we analyzed mobile application data on menstrual cycles to investigate differences in the prevalence, duration, and amount of intermenstrual bleeding (IMB) after COVID-19 vaccination. We also analyzed the duration of menstruation, menstrual cycle length, and associated symptoms after the COVID-19 vaccination. Additionally, we investigated the prevalence of IMB according to the vaccine type.</p><p><strong>Results: </strong>After vaccination, IMB prevalence increased to 3.35% (odds ratio [OR], 1.61; 95% confidence interval [CI], 1.46-1.76; p<0.0001) and IMB duration increased by 0.43 days (95% CI, 0.25-0.60; p<0.0001). The proportion of respondents whose amount of IMB was heavier than regular menstruation increased (OR, 2.96; 95% CI, 1.47-5.93; p=0.002). Menstrual duration decreased by -0.01 days (95% CI, -0.023 to 0.003; p=0.114), and menstrual cycle length increased by 1.39 days (95% CI, 1.30-1.48; p<0.0001). The proportion of participants who answered that there was a difference in menstruation amount increased (OR, 1.52; 95% CI, 1.41-1.64; p<0.0001). The prevalence of IMB increased regardless of the vaccine type.</p><p><strong>Conclusion: </strong>There were statistically significant differences in the prevalence, duration and amount of IMB, menstrual duration, menstrual cycle length, and menstrual amount after COVID-19 vaccination. However, these values were not clinically meaningful and could be regarded as within the normal menstruation range.</p>","PeriodicalId":37602,"journal":{"name":"Obstetrics and Gynecology Science","volume":" ","pages":"155-162"},"PeriodicalIF":2.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11976922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143383818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}