Last Updated on October 31, 2025 by

Discovering bacteria in your urine can be scary. But, it doesn’t always mean you have a urinary tract infection (UTI). Asymptomatic bacteriuria is when bacteria are there but don’t cause symptoms. This is more common in older adults.What does bacteria in urine mean? Learn whether the presence of bacteria is normal or a definitive sign of a urinary tract infection (UTI).
At Liv Hospital, we know you’re worried. We’re here to help you understand what bacteria in urine means. We’ll figure out if you need treatment, so you get the right care.
Studies show that 15% of women and men between 65 and 80 years old have asymptomatic bacteriuria. This number goes up to 40% to 50% after 80. We’ll help you know the difference between normal and infection signs. We focus on evidence-based care.
Key Takeaways
- Bacteria in urine doesn’t always mean you have a UTI.
- Asymptomatic bacteriuria is common, specially in older adults.
- Determining the need for treatment is key.
- Liv Hospital offers patient-focused expertise.
- Evidence-based care is vital for the right treatment.
Understanding Bacteria in Urine (Bacteriuria)

Bacteria in urine, or bacteriuria, can be a sign of an infection. To diagnose it, urine cultures check for over 100,000 bacteria per milliliter.
Diagnosis and Prevalence
Bacteriuria is more common in older adults. Studies show it increases with age. Urine cultures help figure out if bacteria are normal or a sign of a problem.
Clinical Implications of Asymptomatic Bacteriuria
Asymptomatic bacteriuria means bacteria in urine without symptoms. Most people with it don’t get UTIs and don’t need antibiotics. It’s important to know if bacteria are normal or not.
If bacteria are in urine but not causing a UTI, treatment might not be needed. A little bit of bacteria now and then is usually okay. But if it keeps happening or grows a lot, it’s worth looking into further.
FAQ
Is it normal to have bacteria in urine?
Yes, it’s common to have bacteria in urine, known as bacteriuria. This is more common in older adults. It’s okay if you don’t have any symptoms of a urinary tract infection.
What does it mean if bacteria are present in my urine sample?
Bacteria in your urine sample means you have bacteriuria. This can be with or without symptoms. If you don’t have symptoms, it’s usually not treated.
Can you have bacteria in urine without an infection?
Absolutely, you can have bacteria in your urine without a urinary tract infection. This is called asymptomatic bacteriuria. It means bacteria are there but you don’t feel sick.
How is bacteriuria diagnosed?
A urine culture is used to diagnose bacteriuria. It shows if and how much bacteria are in your urine. This test is key to finding out what kind of bacteria you have.
Is occasional bacteria in urine a concern?
If you have occasional bacteria in urine and don’t feel sick, it might not be a big deal. But, if you do have symptoms or if the bacteria keep coming back, you should see a doctor.
What are the implications of having bacteria in urine?
The impact of having bacteria in urine depends on if you have symptoms or not. If you don’t have symptoms, it’s usually not treated, even in older adults. But, before some surgeries, treatment might be needed.
When does bacteria in urine require treatment?
You’ll need treatment for bacteria in urine if you have symptoms of a urinary tract infection. Or, if you’re about to have certain urological surgeries. But, for most cases without symptoms, treatment is not usually given.
How common is asymptomatic bacteriuria among older adults?
Asymptomatic bacteriuria is very common in older adults. Studies show up to 15% of women and men aged 65 to 80 have it. This number goes up to 40% to 50% after 80 years old.
References
- Cystitis. (2024). In T. K. A. V. S. C. A. M. (Eds.), StatPearls. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK482435/