What Is Bacteriuria? Symptoms, Causes, and Treatments

Cheryl Whitten
Cheryl Whitten
May 29, 2024
7
min read
Technically reviewed by: 
Diagnox Staff
What Is Bacteriuria? Symptoms, Causes, and Treatments
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Bacteriuria affects 1% to 5% of healthy women, 1.9% to 9.5% of pregnant women, and 10.8% to 16% of women over 70, but it doesn’t always need treatment [1]. Here’s what to know.

What is Bacteriuria?

Bacteriuria is the presence of bacteria in your urine and is a common finding in men and women. It happens when bacteria, such as E. coli, Enterococcus, and Candida, grow in the urinary tract [1].

There are two types of bacteriuria: asymptomatic and symptomatic. Asymptomatic bacteriuria is not an infection, while symptomatic is linked to urinary tract infections (UTIs) and needs treatment. Women are more likely to develop bacteriuria and UTIs than men [1]. 

Symptoms of Bacteriuria

Bacteriuria doesn’t always cause symptoms, so you may not know you have it. However, bacteria that cause infections can cause symptoms such as [1]:

  • Frequent urination
  • Urgency to urinate
  • Burning or pain while urinating
  • Pelvic pain
  • Back pain
  • Cloudy or bloody urine

Infection can occur in any part of the urinary tract, such as your kidneys or bladder. A kidney infection may also cause [4]:

  • Fever
  • Chills
  • Nausea
  • Vomiting
  • Back or side pain

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What Causes Bacteriuria?

Bacteria can develop for several different reasons. In older adults, the most common reasons are ongoing use of urinary catheters or loss of bladder control due to a spinal or brain condition [1]. 

Postmenopausal women may also have a higher risk. Estrogen levels drop during menopause, changing the natural flora in the vagina. The vagina loses acidity, lowering the natural defense and increasing the risk of bacteriuria and UTI [5].

However, women of all ages are more likely to develop bacteriuria than men because the urethra is close to the vagina and rectum. Bacteria from stool are often accidentally introduced into the urinary tract, causing bacteriuria or UTIs [1]. 

Women also frequently get UTIs after sex, especially with a new sexual partner. Certain types of birth control, such as spermicides and diaphragms, also increase the risk [6]. 

Men may develop bacteriuria and UTIs from urinary stones or an enlarged prostate. These conditions block the urinary tract and encourage bacteria growth [1].

In older adults, bacteriuria often results from prolonged catheter use or loss of bladder control due to spinal or brain conditions.
In older adults, bacteriuria often results from prolonged catheter use or loss of bladder control due to spinal or brain conditions.

GBS Bacteriuria in Pregnancy

GBS bacteriuria is the presence of Group B streptococcal bacteria in the urine. GBS can cause UTIs, meningitis (swelling of the brain and spinal cord lining), and pneumonia [2]. 

Pregnant women who have GBS bacteria may pass it to the baby in the womb, which can lead to infection and serious disease. GBS can cause complications, such as deafness and developmental disabilities, and may also contribute to stillbirth, early deliveries, and pregnancy loss [3].

Treatments for Bacteriuria

Bacteriuria without symptoms doesn’t need treatment unless you have GBS bacteriuria in pregnancy, are immunocompromised, or undergo a genital or urinary procedure [1]. Otherwise, you can monitor your urine using an at-home urinalysis test and watch for symptoms [7]. 

Bacteriuria with symptoms is likely a UTI and requires treatment. Your healthcare provider will prescribe antibiotics and may recommend long-term use or vaginal estrogen therapy for frequent infections [6]. 

Routine testing for GBS in pregnancy happens between 36 and 37 weeks. If the test is positive, your provider will prescribe IV antibiotics during labor to prevent complications [8]. 

A UTI test can help you identify signs of a urinary tract infection from the privacy and convenience of your home.

Monitoring Urine at Home

Some people are more likely to have bacteriuria and develop infections. At-home urinalysis tests can help you monitor your urine for signs of infection, including increased nitrites, white blood cells, and pH changes

Talk to your healthcare provider if you have a positive test with symptoms of a UTI. Order Urinox-10 urinalysis test strips today and take control of your urinary health. 

References

[1] M. Crader, A. Kharsa, and S. Leslie, “Bacteriuria,” StatPearls, Treasure Island, FL: StatPearls Publishing, 2024 [Accessed March 1, 2024].

[2] Meningitis Research Foundation Staff, “What Is Group B Strep Meningitis?” Meningitis Research Foundation [Accessed March 1, 2024].

[3] CDC Staff, “Group B Strep (GBS): Diagnosis, Treatment, and Complications,” Center for Disease Control and Prevention [Accessed March 1, 2024].

[4] CDC Staff, “Urinary Traction Infection,” Center for Disease Control and Prevention [Accessed March 1, 2024].

[5] C. Jung and L. Brubaker, “The etiology and management of recurrent urinary tract infections in postmenopausal women,” Climacteric: The Journal of the International Menopause Society, vol. 22 no. 3, 2019. [Accessed March 1, 2024}.

[6] Mayo Clinic Staff, “Urinary Tract Infection (UTI),” Mayo Clinic [Accessed March 1, 2024].

[7] Mayo Clinic Staff, “Urinalysis,” Mayo Clinic [Accessed March 1, 2024].

[8] CDC Staff, “Preventing Group B Strep Disease,” Center for Disease Control and Prevention [Accessed March 1, 2024].

About the Author
Cheryl Whitten

Cheryl Whitten is a health writer with a background in allied health care as an herbalist and clinical aromatherapist. She holds a Bachelor of Arts in English literature from Athabasca University and certificates from the University of Maryland and Wild Rose College. She writes for leading health and lifestyle websites with a focus on health, wellness, and consumer products.

About the Reviewer
This blog was
Technically reviewed by: 
Diagnox Staff

Diagnox Staff consists of a multidisciplinary team of scientists, content writers, and healthcare professionals with an expertise to create and review high-quality, informative, accurate, and easy-to-understand content for both professionals and everyday readers. Our staff follows strict guidelines to ensure the credibility and authenticity of the information, reviewing them independently and verifying them by various scientific and technical sources to ensure accuracy. Our review team believes in delivering knowledge free from bias to improve public health and well-being.

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