News | Obesity and Bacterial Vaginosis: Hidden Threats to Reproductive Health
A study published in Best Practice & Research Clinical Obstetrics & Gynaecology found that obesity may adversely affect female fertility by altering the vaginal microbiome. The study reviewed the relationship between obesity and vaginal flora and analyzed associated adverse reproductive outcomes.
The human microbiome varies among individuals. The vaginal microbiome is less diverse than those at other sites and is dominated by Lactobacillus, which creates an acidic environment that helps prevent infection and maintain reproductive health. In women with obesity, however, vaginal Lactobacillus—especially L. crispatus—is significantly reduced and replaced by organisms such as Dialister, Prevotella timonensis, and Anerococcus vaginalis, increasing microbial diversity. Studies in different regions have reported this pattern.
Obesity and reproductive health
Obesity raises the risks of cardiovascular disease, diabetes, and several cancers and also adversely affects pregnancy. Women with obesity have lower conception rates and lower IVF success rates than women of normal weight. Bacterial vaginosis (BV) is also more common in women with obesity and is strongly associated with adverse outcomes such as miscarriage, preterm birth, and tubal infertility.
Obesity may also alter the vaginal microbiome through inflammation and hormonal changes. Obesity-related hypoxia and leptin activity in adipose tissue lower estrogen levels. Inflammatory factors can reduce ovarian function and increase the risk of polycystic ovary syndrome (PCOS).
Future research and applications
Although evidence indicates that obesity can adversely affect reproductive health by changing the vaginal microbiome, the exact mechanisms require further study. Future research should examine microbes involved in estrogen metabolism and how ethnicity, genetics, and lifestyle influence the vaginal microbiome, with the goal of developing interventions that improve microbial balance and reduce adverse reproductive risks in women with obesity.
News | Obesity and Bacterial Vaginosis: Hidden Threats to Reproductive Health
News | Obesity and Bacterial Vaginosis: Hidden Threats to Reproductive Health
A study published in Best Practice & Research Clinical Obstetrics & Gynaecology found that obesity may adversely affect female fertility by altering the vaginal microbiome. The study reviewed the relationship between obesity and vaginal flora and analyzed associated adverse reproductive outcomes.
The human microbiome varies among individuals. The vaginal microbiome is less diverse than those at other sites and is dominated by Lactobacillus, which creates an acidic environment that helps prevent infection and maintain reproductive health. In women with obesity, however, vaginal Lactobacillus—especially L. crispatus—is significantly reduced and replaced by organisms such as Dialister, Prevotella timonensis, and Anerococcus vaginalis, increasing microbial diversity. Studies in different regions have reported this pattern.
Obesity and reproductive health
Obesity raises the risks of cardiovascular disease, diabetes, and several cancers and also adversely affects pregnancy. Women with obesity have lower conception rates and lower IVF success rates than women of normal weight. Bacterial vaginosis (BV) is also more common in women with obesity and is strongly associated with adverse outcomes such as miscarriage, preterm birth, and tubal infertility.
Obesity may also alter the vaginal microbiome through inflammation and hormonal changes. Obesity-related hypoxia and leptin activity in adipose tissue lower estrogen levels. Inflammatory factors can reduce ovarian function and increase the risk of polycystic ovary syndrome (PCOS).
Future research and applications
Although evidence indicates that obesity can adversely affect reproductive health by changing the vaginal microbiome, the exact mechanisms require further study. Future research should examine microbes involved in estrogen metabolism and how ethnicity, genetics, and lifestyle influence the vaginal microbiome, with the goal of developing interventions that improve microbial balance and reduce adverse reproductive risks in women with obesity.
Source:
Collected online