How To Treat BV and UTI Together

Medically reviewed by:
Trager Hintze, PharmD
How To Treat BV and UTI Together
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Both bacterial vaginosis (BV) and urinary tract infections (UTIs) are bacterial infections that affect the genitourinary area. Bacterial vaginosis is a bacterial overgrowth in the vagina, while a UTI is caused by bacteria proliferating in the urinary tract. The two conditions are separate health issues, but it's possible that the presence of BV may increase the risk of UTIs.

Researchers at the Washington University School of Medicine discovered that specific vaginal bacteria may trigger recurrent urinary tract infections (UTIs). Bacteria found in the vagina can move to the urinary tract, leading to repeated infections, even after antibiotic treatment [1].

What Is Bacterial Vaginosis?

Bacterial vaginosis (BV) is a treatable condition caused by overgrowth of harmful bacteria in the vagina. It is a very common infection and occurs most often in women between ages 15 and 44. It is not considered a sexually transmitted infection. However, the bacteria that cause BV can be found on the penis, though it does not cause symptoms in men [2].

Gardnerella vaginalis is the primary bacteria responsible for bacterial vaginosis, disrupting the natural balance of the vaginal flora.

What Is a Urinary Tract Infection?

A urinary tract infection is an infection in any part of the urinary system. UTIs develop when harmful bacteria attach to the tissue inside the urinary tract, leading to pain and inflammation. UTIs are sometimes caused by mixed urogenital flora transfer from the anus or genital area to the opening of the urinary tract through activities like sexual contact or improper wiping after defecation [3].

Escherichia coli (E. coli) is a common bacteria found in the intestines, but when it enters the urinary tract, it can cause infections such as UTIs, leading to symptoms like pain, frequent urination, and discomfort.
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Can BV Feel Like a UTI? What's the Difference?

Both BV and UTIs are bacterial infections that can lead to pain with urination, pain during sex, and discomfort in the genitourinary region. In addition, each condition has characteristic symptoms.

Common UTI symptoms include:

  • Lower abdominal pain
  • Flank pain
  • Urinary frequency
  • Urinary urgency
  • Blood in the urine
  • Cloudy or smelly urine

Common BV symptoms include:

  • Changes in vaginal discharge
  • Milky or gray vaginal discharge
  • Watery or foamy vaginal discharge
  • Vaginal discharge with a fishy odor
  • Burning or itching in the vagina and vaginal opening

Not all cases of BV cause symptoms. Many women have the bacteria that cause BV present in their vaginas without knowing it. If the bacteria are inadvertently transferred to the urinary tract, they can lead to UTIs.

Women who have recurrent UTIs may benefit from testing for and treating asymptomatic BV.

Vaginal flora play a critical role in maintaining vaginal health by providing the ideal environment for normal vaginal functions to occur.

How To Treat BV and UTI Together or Separately

Some UTIs will resolve without treatment, but you should call your doctor to discuss options if you suspect you have a UTI. Similarly, if you have symptomatic BV, you should talk to your doctor. Both types of infections can get worse without treatment.

Both UTIs and BV respond to antibiotics, but they do not respond to the same ones. For BV, doctors often prescribe metronidazole or clindamycin gel to be inserted into the vagina. For UTIs, doctors typically prescribe an oral antibiotic such as nitrofurantoin, sulfamethoxazole/trimethoprim, or fosfomycin.

There is some evidence that using boric acid does help manage BV. Boric acid vaginal suppositories can treat BV. Some research shows that using the suppositories for 14-21 days can treat a BV infection. Boric acid does not help with UTI [4].

You should talk to your doctor before using any type of vaginal suppository. It's also important to follow safety instructions since boric acid is toxic if swallowed.

At-Home Testing for BV and UTI

You can use at-home tests to determine whether you have UTI vs BV, or both. These tests can help you determine which type of infection you have, particularly if symptoms are ambiguous. You can tell your doctor the results of home testing and use that information as the basis for treatment decisions.

Vaginox vaginal pH test strips are an accurate BV test kit that you can use in the privacy of your home. The test strips measure the acidity of vaginal discharge to determine the cause of symptoms. Changes in vaginal pH are correlated with conditions such as yeast infection and BV.

To test vaginal pH, you simply use the included sterile swabs to collect a small amount of vaginal discharge and apply it to the vaginal pH test strips. After two minutes, compare the color of the test strip with the color chart for results.

The Diagnox at-home UTI Test works like the tests used in doctor's offices. The dipstick-style test strip measures inflammation and bacterial activity in urine. Dip the strip into a urine sample and wait two minutes for results.

References

[1] Gilbert, N. M., O'Brien, V. P., & Lewis, A. L. (2017). "Transient microbiota exposures activate dormant Escherichia coli infection in the bladder and drive severe outcomes of recurrent disease." PLoS pathogens, 13(3), e1006238. [Accessed October 3, 2024].

[2] Cleveland Clinic. "Bacterial Vaginosis." [Accessed October 3, 2024].

[3] Cleveland Clinic. "Urinary Tract Infections." [Accessed October 3, 2024].

[4] A. Powell, K. G. Ghanem, L. Rogers, A. Zinalabedini, R. M. Brotman, J. Zenilman, and S. Tuddenham, "Clinicians' use of intravaginal boric acid maintenance therapy for recurrent vulvovaginal candidiasis and bacterial vaginosis," Sexually Transmitted Diseases. [Accessed October 3, 2024].

About the Author
Rebekah Kuschmider

Rebekah has been writing about culture, health, and politics since 2010. She has a masters degree in Arts Policy and Administration from The Ohio State University. Her work has been seen at WebMD, The Candidly, MedicineNet, YourTango, Ravishly, Babble, Scary Mommy, Salon, Role Reboot, The Good Men Project, SheSaid, Huffington Post, and Mamamia. She is a former cohost of the weekly podcast The More Perfect Union. Rebekah lives in Maryland with her husband, two kids, and a dog who sheds a lot.

About the Reviewer
This blog was
Medically reviewed by:
Trager Hintze, PharmD

Trager Hintze is a clinical assistant professor and emergency medicine clinical pharmacist located in College Station, Texas. He has a bachelor's degree in biology as well as a Doctor of Pharmacy degree. He balances teaching at Texas A&M University College of Pharmacy and practicing emergency medicine at St. Joseph Regional Health Hospital.

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