Can Probiotics Improve Fertility by Supporting Vaginal Health?

A healthy vaginal microbiome plays an important role in your reproductive health. Although probiotics are not a treatment for infertility, they may help restore the balance of beneficial bacteria in the vagina in some women. Our experts explain how vaginal health may affect fertility and whether probiotics can support your chances of conception.

Pregatips
Many factors may influence your ability to conceive. This may include the ovulation process, hormonal balance, quality of eggs and sperm, and your overall reproductive health status. Another important factor influencing your reproductive health is the balance of bacteria in your vagina, known as the “vaginal microbiome."
A healthy vaginal environment supports the growth of good bacteria, Lactobacillus. It’s a dominant bacterial species of the microbiome. Such beneficial bacteria help maintain an acidic environment. The low pH environment helps limit the growth of harmful microorganisms. However, if there is any imbalance in the vaginal microbiome, the risk of vaginal infections increases. These issues may even affect your reproductive health. Your doctor may recommend probiotics along with other treatments to help restore a healthy bacterial balance in your vagina.

What Are Probiotics?

Probiotics are live microorganisms that may provide health benefits when consumed in adequate amounts. They are naturally found in some fermented foods such as yoghurt, kefir, kimchi, and some dietary supplements. Certain probiotic strains may help restore the natural balance of bacteria in the gut and vagina.

Your doctor may recommend a probiotic depending on your symptoms, diagnosis, and clinical assessment. All probiotics have different effects. Their benefits depend on the specific strains they contain.


Can an Imbalance in the Vaginal Microbiome Affect Fertility?

A healthy vaginal microbiome creates conditions that support reproductive health.

Beneficial Lactobacillus bacteria help by:

  • Maintaining an acidic vaginal pH
  • Preventing the growth of harmful bacteria
  • Supporting the natural protective barrier of the vagina
  • Reducing the risk of certain vaginal infections
If harmful types of bacteria take over the vaginal environment, it could lead to a higher chance of bacterial vaginosis or other vaginal infections.

Some studies suggest that these conditions may be associated with decreased fertility and lower success rates in assisted reproductive procedures.

How Can Probiotics Support Your Fertility?

Probiotics cannot directly improve fertility, they support vaginal as well as overall reproductive health, however, probiotics may help restore a healthy vaginal microbiome in some women, particularly those with recurrent bacterial vaginosis or an imbalance in vaginal bacteria. By supporting vaginal health, probiotics may help create a more favourable reproductive environment. However, more high-quality studies are needed before probiotics can be recommended as a fertility treatment.

Which Probiotics May Support Vaginal Health?

The following are the types of probiotic strains that can help you restore your vaginal microbiome:

Type of strain
Significance
Lactobacillus rhamnosus
May help restore healthy vaginal bacteria
Lactobacillus reuteri
May support the normal vaginal microbiome
Lactobacillus crispatus
May help maintain an acidic vaginal environment
Lactobacillus gasseri
May contribute to a healthy balance of vaginal bacteria

Who May Benefit from Probiotics?

Your healthcare provider may consider probiotics if you:

  • Have recurrent bacterial vaginosis
  • Experience frequent vaginal infections
  • Are on treatment for bacterial vaginosis
  • Want to support vaginal microbiome health
  • Have been advised to use probiotics alongside other treatments
Probiotics should not replace medical treatment for infertility or vaginal infections.

Effect of Probiotics on Fertility Outcomes

Maintaining a healthy vaginal microbiome may support your overall reproductive health. However, probiotics alone are unlikely to improve fertility if infertility is caused by problems such as blocked fallopian tubes, ovulation disorders, endometriosis, male factor infertility, or age-related decline in fertility. If you have been trying to conceive for several months without success, consult your healthcare provider for a complete fertility evaluation.

If you have concerns about your vaginal health or recurrent infections while trying to conceive, speak with your healthcare provider. They can identify the underlying cause and recommend the most appropriate treatment based on your individual needs.

You’re not alone in your journey when trying to conceive. Join our supportive community to connect with others, share experiences, and find encouragement every step of the way.

FAQs on Can Probiotics Improve Fertility by Supporting Vaginal Health?

  1. Can probiotics cure infertility?
    No. Probiotics are not a treatment for infertility. They may support vaginal health in some women, but cannot correct most medical causes of infertility.
  2. Can I take probiotics while trying to conceive?
    Many probiotics are generally considered safe for healthy adults. However, it is best to discuss any supplements with your healthcare provider before starting them while trying to conceive.
  3. How long does it take for probiotics to improve vaginal health?
    The time varies depending on the probiotic strain, your vaginal microbiome, and the underlying condition. Some women may notice improvements within a few weeks, while others may require longer treatment or additional medical care.
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