Understanding Bacterial Vaginosis (BV) and Fertility

Bacterial Vaginosis (BV) is a common vaginal infection that can affect reproductive health more than you might realise. In this blog, you’ll learn how BV develops, how it impacts fertility, and what you can do to treat and prevent it. Understanding BV is a key step, whether you're trying to conceive or simply want to support your reproductive wellness, regardless of your gender identity.

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If you’ve ever experienced abnormal vaginal discharge, a persistent fishy odour, or irritation, you may be prone to bacterial vaginosis (BV) and you’re not alone. BV is one of the most common vaginal infections that is known to affect millions of individuals throughout the world. Although it may not show any noticeable signs, its impact on your fertility should not be overlooked, especially if you're planning to have a baby.

With this in mind, you may already be aware that keeping your vaginal area clean is critical for your reproductive health. What you may not know is how the disturbance, such as bacterial vaginosis, can affect everything from the sperm movement to the implantation of the embryo. The good news? By acquiring information and receiving appropriate treatment, you may be able to ensure fertility and focus on reproductive health management.

What Exactly Is Bacterial Vaginosis?

First off, bacterial vaginosis is not an STI. However, behaviours associated with sexual activity may contribute to the development of the condition. This is a health condition caused by an overgrowth of naturally occurring vaginal bacteria, which disrupts the balance between the beneficial and harmful microbes in the vaginal ecosystem.Usually, your vagina is populated predominantly by lactobacillus, which is a kind of friendly bacteria that maintains the vaginal pH on a slightly acidic level, getting rid of all harmful bacteria.Bacterial vaginosis can occur if the good bacteria become outnumbered by other types of bacteria, especially Gardnerella vaginalis. This imbalance allows the overgrowth of certain bacteria, leading to symptoms like vaginal discomfort, discharge, and irritation. While some individuals report changes in their menstrual patterns, more research is needed to confirm a direct link between BV and menstrual irregularities.

Common Symptoms of BV

While some people with BV don’t experience any symptoms, you might notice:
  • A thin, greyish, or white discharge
  • A strong, fishy odour, especially after intercourse
  • Itching or burning around your vaginal area
  • A burning sensation during urination
It’s easy to confuse BV with a yeast infection or another condition, so proper diagnosis by a healthcare expert is essential.

How Is BV Diagnosed?

If your doctor feels that you may have BV, they will perform a pelvic exam for sample collection of your vaginal discharge. A laboratory test can then determine BV by performing a test that detects the elevated vaginal pH and clue cells, that is, the cells coated with bacteria.It is crucial to seek proper treatment, as this will help relieve the symptoms and protect your fertility.

BV and Fertility: What's the Connection?

You might be wondering: Can BV affect your ability to get pregnant? The answer is yes, and in more ways than one.Here’s how BV can interfere with your reproductive goals:1. Sperm Viability: When BV alters your vaginal pH and bacterial environment, it can damage or slow sperm, reducing their ability to swim effectively toward the egg. A hostile vaginal environment makes it harder for fertilisation to occur.2. Increased risk of Pelvic Inflammatory Disease (PID): If left untreated, BV can ascend from your vagina into your upper reproductive tract, leading to pelvic inflammatory disease. PID can cause scarring in the fallopian tubes, which may block the passage of eggs or sperm, significantly affecting your fertility.3. Complications with Assisted Reproductive Technology (ART): If you’re considering IVF or other assisted reproductive treatments, untreated BV may lower your chances of success. Some studies suggest that BV is associated with embryo implantation failure and early pregnancy loss.Even if you practice good hygiene, over-cleansing or introducing foreign substances to the genital area can upset the bacterial balance.

What Causes the Imbalance That Leads to BV?

BV doesn’t always have a clear cause, but several factors can increase your risk:
  • Unprotected sex or new sexual partners
  • Douching, which disrupts the vaginal flora
  • Use of scented soaps, wipes, or vaginal deodorants
  • A natural predisposition due to hormonal fluctuations
  • Use of intrauterine devices (IUDs)
Even if you practice good hygiene, over-cleansing or introducing foreign substances around your vaginal canal can upset the bacterial balance.

How Is BV Treated?

The standard treatment for BV is a course of antibiotics, taken orally or applied as a vaginal gel. These medications help restore the balance of bacteria and relieve symptoms.If you're trying to conceive, it’s a good idea to:
  • Complete the full course of antibiotics.
  • Avoid unprotected sex during treatment.
  • Refrain from douching or using intravaginal products.

Can BV Be Prevented?

While you can’t always prevent BV, you can reduce your risk by:
  • Using condoms during sex
  • Avoiding douching or harsh soaps
  • Wearing cotton underwear and breathable fabrics
  • Limiting multiple sexual partners
  • Maintaining a balanced diet to support your immune system

What If BV Keeps Coming Back?

Recurrent BV is frustrating, and unfortunately, it’s common. If you’ve had BV more than three times a year, talk to your healthcare expert about long-term strategies. These may include:
  • Extended courses of antibiotics
  • Use of probiotic vaginal suppositories
  • Hormonal evaluations to rule out imbalances
  • Lifestyle modifications, including dietary support

BV During Pregnancy: What You Need to Know

If you're already pregnant and suspect you have BV, don’t delay treatment. BV in pregnancy is linked to:
  • Preterm labor
  • Amniotic fluid infections
  • Low birth weight infants
The treatment is safe during pregnancy and is essential to reducing the risk of complications. If you're in the early stages of fertility treatment or IVF cycles, make sure BV is ruled out before embryo transfer.Bacterial vaginosis is more than just a vaginal discomfort, it’s a condition that can quietly interfere with your fertility and reproductive plans. If you’re trying to conceive or undergoing fertility treatments, managing your vaginal health is a vital part of the process. By recognising the signs of BV, seeking a prompt diagnosis, and following through with treatment, you give yourself the best chance at a healthy conception and pregnancy. And if BV becomes a recurring issue, remember you’re not alone; many people face this challenge, and solutions are available.

FAQs on Understanding Bacterial Vaginosis and Fertility

  1. Can I still try to conceive while being treated for BV?It’s best to complete the full course of antibiotics before trying to conceive. This ensures that the vaginal environment is optimal for sperm and embryo development, reducing the risk of complications.
  2. Can BV affect IVF success?Yes, untreated BV can reduce implantation rates and increase the risk of early pregnancy loss during IVF. It’s recommended to treat BV before starting any assisted reproductive procedures.
  3. Are probiotics effective in preventing BV recurrence?Some research suggests that probiotics, especially those containing Lactobacillus strains, can help maintain a healthy vaginal flora and reduce the recurrence of BV. However, more studies are needed, and you should consult your doctor before starting any supplements.
Disclaimer: Medically approved by Dr Sreeja Rani, Sr. Consultant, Obstetrics & Gynaecology, Kinder Women’s Hospital and Fertility Centre, Bangalore