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Author Spotlight: Revolutionizing Research on Vaginal Microbiome Interactions Using a Vaginal Chip
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Vaginal microbiome and recurrent pregnancy loss.

Xingxing Yuan1,2, Jiawei Gao1, Ousman Bajinka3

  • 1First Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China.

Infection and Immunity
|June 30, 2025
PubMed
Summary

The vaginal microbiome, particularly Lactobacillus species, is crucial for a healthy pregnancy. Altered vaginal microbiota composition is linked to recurrent pregnancy loss (RPL), highlighting its role in reproductive health.

Keywords:
immune responselactobacillimetabolitesrecurrent pregnancy lossvaginal microbiome

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Area of Science:

  • Reproductive Biology
  • Microbiome Research
  • Immunology

Background:

  • Recurrent pregnancy loss (RPL) affects many couples trying to conceive.
  • The vaginal microbiome plays a vital role in maintaining a healthy reproductive environment.
  • Lactobacillus species dominance is associated with preventing pathogens and maintaining vaginal homeostasis.

Purpose of the Study:

  • To review recent findings on the vaginal microbiome and its association with RPL.
  • To explore the potential of vaginal microbiota as biomarkers for pregnancy health and RPL risk.
  • To summarize immune and metabolite changes in RPL and discuss limitations.

Main Methods:

  • Literature review of recent studies on vaginal microbiome and RPL.
  • Analysis of findings related to Lactobacillus spp. and their protective role.
  • Synthesis of data on biomarkers, immune responses, and metabolites.

Main Results:

  • Altered or reduced Lactobacillus spp. in the vaginal microbiome are linked to RPL.
  • Vaginal microbiota show potential as predictive biomarkers for pregnancy outcomes.
  • Immune responses and metabolite profiles are altered in RPL cases related to microbiome dysbiosis.

Conclusions:

  • The vaginal microbiome composition is a significant factor in recurrent pregnancy loss.
  • Targeting the vaginal microbiome may offer new strategies for preventing RPL.
  • Further research is needed to fully understand and utilize vaginal microbiota for reproductive health.