Evidence-backed FAQ

Do probiotics help bacterial vaginosis?

Direct answer

In meta-analyses of randomized trials, participants assigned to Lactobacillus-based probiotic regimens were more likely to no longer meet bacterial-vaginosis diagnostic criteria at follow-up than participants assigned to placebo, but the evidence was weak and heterogeneous.[1], [2]

What the evidence shows

Pooled trials did not show extra adverse events compared with control. In some analyses, regimens studied alongside antibiotics produced somewhat better follow-up outcomes than antibiotics alone.[1], [2]

Important limitations

Trials differed in strain, route, dose, and follow-up, no standardized regimen was established, and reviewers called for larger, more uniform studies. This does not replace diagnosis or established treatment.[1], [2]

Related questions

  • Were oral and vaginal products both studied?
  • Did probiotics outperform antibiotics?

Read the full evidence summary

This FAQ is the concise answer. The linked research page provides the full study context, populations, doses, outcomes, and limitations.

Open the supporting research →

References

  1. Probiotics for the treatment of women with bacterial vaginosis: A systematic review and meta-analysis of randomized clinical trials.. European journal of pharmacology. 2019. Systematic review and meta-analysis View source →
  2. Probiotics for the Treatment of Bacterial Vaginosis: A Meta-Analysis.. International journal of environmental research and public health. 2019. Systematic review and meta-analysis View source →