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Introduction: Bacterial vaginosis, resulting from vaginal microbiota imbalance and lactobacilli depletion, is the leading cause of abnormally appearing discharge in reproductive-aged women. Bacterial vaginosis is also associated with risk for sexually transmitted infections, preterm birth, and pelvic inflammatory disease. This meta-analysis assessed the association between the risk of bacterial vaginosis (BV) and body mass index (BMI).
Methods: We systematically searched electronic databases using terms for weight, vaginosis, obesity, and BMI. We also reviewed gray literature, reference lists, and trials registries and sought the advice of experts. We calculated the overall odds ratios (OR) and the 95% confidence intervals (CI) using fixed-effect model for homogenous data and random-effects models for heterogenous data.
Results: Eight observational studies ( = 22 190) were included, with quality assessment scores ranging from 7 to 9. Compared with normal-weight women (BMI 18.5-24.9), underweight women (BMI <18.5) had significantly higher prevalence of bacterial vaginosis (OR: 1.23; 95% CI: 1.12-1.36; < 0.001). No significant associations were found for overweight (OR: 1.19; 95% CI: 0.95-1.48; = 0.13) or obesity (OR: 1.29; 95% CI: 0.91-1.82; = 0.15).
Conclusion: Our findings suggest a significant association between underweight status and an increased likelihood of being diagnosed with bacterial vaginosis. However, causality cannot be established due to the observational nature of the included studies. Further prospective research is needed to confirm this relationship.
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http://dx.doi.org/10.1097/MS9.0000000000003655 | DOI Listing |
Interdiscip Perspect Infect Dis
August 2025
Department of Obstetrics and Gynecology, Kampala International University, Ishaka, Uganda.
Mixed vaginal infection involves the simultaneous presence of at least two types of vaginitis, including bacterial vaginosis (BV) and vulvovaginal candidiasis (VVC), BV and (TV), or TV and VVC. This condition disrupts the vaginal milieu, resulting in significant diagnostic and therapeutic challenges, recurrent infections, and increased antimicrobial resistance. This study aimed to assess the mixed vaginal infections and their predictors among women with abnormal vaginal discharges attending gynecological clinics in western Uganda.
View Article and Find Full Text PDFReprod Biomed Online
May 2025
Materno-fetal and Obstetrics Research Unit, Department Woman-Mother-Child, University Hospital of Lausanne, Lausanne, Switzerland; Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland. Electronic address:
Research Question: What is the composition of bacterial communities at various genital sites and are there potential interactions between partners' microbiota?
Design: This observational study involved metagenomic analyses of samples collected from male and female partners of couples undergoing fertility treatment. Samples included vaginal and penile swabs, as well as follicular fluid and semen, which were analysed using next-generation sequencing.
Results: The bacterial community profiles of different genital tract niches were distinct, niche-specific compositions, with female samples predominantly featuring Lactobacillus species and male samples displaying greater microbial diversity, including genital-specific and skin-associated taxa.
Although bacterial vaginosis (BV) affects 30% of women worldwide and is associated with adverse health outcomes, current standard-of-care antibiotics fail in over half of cases and treatments have not improved in over 40 years. Probiotics have been proposed as alternative treatments, but fail to restore an optimal lactobacilli-dominated microbiome in the vast majority of patients. Here, we present findings from a pilot clinical trial demonstrating the successful engraftment of vaginal microbiota transplantations (VMTs) after antibiotic treatment in individuals with recurrent BV.
View Article and Find Full Text PDFThe vaginal microbiome plays a critical role in maintaining immune and epithelial homeostasis in the female reproductive tract. Bacterial Vaginosis (BV) is deleterious to female health, causing the loss of beneficial species, overgrowth of anaerobic taxa, changes in vaginal pH, breakdown of protective mucins and epithelial barriers, and activation of the immune system. Treatment with gel-based antibiotics (Metronidazole or Clindamycin) resolves BV for 85% of patients, but 50% of those cases recur, indicating a need to identify strategies for overcoming antibiotic resistance and achieving a more durable response.
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