A study done in 2017 by the Washington University School of Medicine study proved that it is very much possible for Bacterial Vaginosis to cause a Urinary Tract Infection.

How Does A Urinary Tract Infection Happen?

Urinary Tract Infections occur when bacteria that are commonly found in the small and large intestines make their way up the urinary tract system, which includes the bladder, kidney, ureter, and urethra. The infection appears when bacteria use their flagellum hook, an arm like a tool, to latch onto one of these organs and cause biofilm to build up. The most common of these bacteria is E. Coli which makes up approximately 80% of all E. Coli cases.

Urinary Tract Infections are normally treated with antibiotics, which can clear most cases. However, it is when the bacteria called Gardnerella Vaginalis (G. Vaginalis) is present that recurrent UTI along with BV can develop.

How Does Bacterial Vaginosis Happen?

Bacterial Vaginosis is defined as an imbalance of good lactobacillus probiotic and bad anaerobic pathogens. And when this occurs, much more happens than just the pH balance shifting which is what we commonly read about on most blogs.  

  • When pH increases it forms an acidic to a more basic state, leading to a harsher environment where bad bacteria can thrive in. 
  • When bad bacteria thrive, they compete more for the precious glucose – sugars that can be found in the vaginal mucosa, leading to the creation of toxins while reducing the efficacy of beneficial lactobacillus.
  • With the bad bacteria creating a less favorable pH and good bacteria unable to compete for the nutrients they need in order to survive, the symptoms of BV, such as discharge, unusual odor and itch, present itself.

How Can You Have BV and UTI at the Same Time?

New studies suggest that when G. Vaginalis is present and residual E. Coli is dormant from a prior infection, the Gardnerella reactivates and increases the potentiation of dormant E. Coli, leading to a recurring Urinary Tract Infections. This is because the G. Vaginalis causes damage to the cells on the surface of organs and makes the E. Coli bacteria multiply.

There have been studies in the past that E. Coli can remain dormant after infection, however, this is the first study to show what the trigger may be.

The studies protocol included infecting the bladder of female mice with E. Coli in order to initiate a Urinary Tract Infection and then allowing them to recover. After one month and no detection of E. Coli in the bladder, researched introduced either Lactobacillus crispatus, G. Vaginalis or Sterile Saltwater as a control. Within 12 hours, both of the vaginal bacterias were eliminated from the bladder, but those that were exposed to G. Vaginalis found E. Coli reappeared in the urine and experienced recurrent UTI. 

The study also found that when E. Coli traveled from the bladder to the Kidneys, severe kidney damage occurred. They also found that mice who were treated with the lactobacillus or sterile saltwater were 5x less likely to experience recurrent BV.

What does this mean for your vaginal wellness?

Having BV and a UTI at the same time presents a challenge. It can be treated with antibiotics, however, due to the nonspecific nature of antibiotics, the good bacteria and vaginal flora are put at risk, leading to greater opportunities for a Yeast Infection to happen and bad bacteria to grow vigorously. 

And as we just learned, this can lead to recurrent UTIs if G. Vaginalis is present.

How can you take action?

First off, we always recommend taking a great probiotic supplement in order to increase the number of good bacteria in the vaginal flora. When you take a probiotic it creates more lactic acid in the vagina which can lead to a more acidic environment and inhibit the growth of bad bacteria.

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Cranberry supplements can benefit from bacterial adhesion due to their antioxidant properties. Studies have shown that specific cranberry blends can reduce the recurrence of UTIs by up to 52%. 

However, the most important thing you can possibly do is visit your primary physician or OB/GYN and ask to be screened for both E. Coli and G. Vaginalis. The reality is that you will only find what you test for, the doctor must perform a direct smear like a gram stain to test for G. Vaginalis, so if you believe you might have it, ask your doctor to check for it.