Urinary Tract Health | 6 min read
If a urine test has come back showing Klebsiella, you may be wondering what it is and how worried to be. Klebsiella is one of the most common causes of urinary tract infections (UTIs)—second only to E. coli—and while it behaves a lot like other UTI bacteria, it has a few features worth understanding, including a greater tendency toward antibiotic resistance. Here's what Klebsiella in the urine means, how it causes infection, and how it's diagnosed, treated, and prevented.
What is Klebsiella?
Klebsiella (most often the species Klebsiella pneumoniae) is a type of gram-negative bacteria that lives normally in the human gut and is also found in the environment. When found in the intestines it's usually harmless. Like E. coli, it only becomes a problem when it reaches places it doesn't belong,such as the urinary tract,where it can multiply and cause infection. After E. coli, Klebsiella is one of the most frequently identified bacteria in UTIs.
How Klebsiella causes a UTI
Klebsiella causes UTIs the same basic way E. coli does: bacteria travel from the gut or genital area to the urethra, move up to the bladder, and multiply. Klebsiella is especially associated with UTIs in healthcare settings and in people with urinary catheters, and it appears more often in “complicated” UTIs such as those linked to an underlying issue such as an obstruction, a catheter, or a weakened immune system. It's also a known cause of catheter-associated urinary tract infections.
The resistance factor: why Klebsiella can be harder to treat
The most important thing that sets Klebsiella apart from ordinary E. coli is its tendency toward antibiotic resistance. Some Klebsiella strains produce enzymes (called extended-spectrum beta-lactamases, or ESBLs) that disable many common antibiotics, and a smaller number are resistant even to last-resort antibiotics called carbapenems (carbapenem-resistant Enterobacterales, or CRE). The CDC lists these resistant Klebsiella strains among its most urgent antibiotic-resistance threats. This is exactly why, when Klebsiella is suspected or confirmed, a urine culture and sensitivity testing matters so much—it tells your provider which antibiotics will actually work.
Symptoms and diagnosis
A Klebsiella UTI causes the same symptoms as any other UTI: burning with urination, urgency and frequency, cloudy or bloody urine, and pelvic discomfort. More severe symptoms like fever, chills, nausea, or back and side pain suggest the infection may have reached the kidneys and needs urgent care. On an at-home or in-office dipstick, Klebsiella—like E. coli—is a gram-negative bacterium that converts nitrates in the urine to nitrites, so it can trigger a positive nitrite result. But only a laboratory urine culture can confirm that Klebsiella specifically is the cause and identify which antibiotics it responds to.
Treatment and who's at higher risk
Klebsiella UTIs are treated with antibiotics, ideally guided by culture and sensitivity results given the resistance concerns. People at higher risk include those with urinary catheters, recent hospital stays, diabetes or a weakened immune system, recent antibiotic use, urinary tract abnormalities or obstruction, and older adults. If you're in a higher-risk group, it's especially important to have UTI symptoms evaluated rather than assuming a standard course of treatment will work.
Prevention—and where non-antibiotic options fit
Everyday prevention is the same as for other UTIs: stay well hydrated to flush the urinary tract, urinate regularly without holding it, wipe front to back, and pee after sex. When it comes to non-antibiotic support, one nuance is worth knowing. Methenamine, a urinary antiseptic, works by producing formaldehyde in acidic urine through a broad, nonspecific mechanismso it discourages a wide range of bacteria, including Klebsiella, and doesn't drive resistance. D-mannose, on the other hand, works mainly by blocking the specific structures E. coli uses to grip the bladder wall, so it's more targeted to E. coli and may be less useful against Klebsiella. Cranberry and good hydration remain reasonable general measures.
Acting early and getting the right care
Because Klebsiella can be more resistant, prompt, culture-guided treatment is key—so quick access to care matters. The Cadence OTC UTI Emergency Relief Kit can help you respond at the first sign, with UTI test strips to check for infection, phenazopyridine for fast symptom relief, methenamine, and a pH power flush drink mix (vitamin C, D-mannose, and cranberry extract with PACs). And because a Klebsiella UTI often needs a prescription tailored to the bacteria, the kit's telehealth access lets you connect with a clinician quickly and, when appropriate, have treatment sent to any pharmacy—often within about 4 to 6 hours.
When to see a doctor
See a healthcare provider if your symptoms are severe, persist for more than a day or two, or worsenand seek prompt care for fever, chills, nausea, vomiting, or back or side pain. Because Klebsiella is more likely to be resistant and to occur in complicated UTIs, it's especially worth having symptoms properly evaluated and, when needed, treated based on a urine culture.
This article is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. If symptoms are severe, persist beyond a day or two, or are accompanied by fever, chills, or back pain—or if you are pregnant—seek medical care promptly.
References
1. Flores-Mireles AL, Walker JN, Caparon M, Hultgren SJ. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat Rev Microbiol. 2015;13(5):269-284. https://pubmed.ncbi.nlm.nih.gov/25853778/
2. Centers for Disease Control and Prevention. Antibiotic Resistance Threats in the United States, 2019 (ESBL-producing Enterobacterales; carbapenem-resistant Enterobacterales). https://www.cdc.gov/antimicrobial-resistance/data-research/threats/
3. Bono MJ, Leslie SW, Reygaert WC. Uncomplicated Urinary Tract Infections. StatPearls, 2023. https://www.ncbi.nlm.nih.gov/books/NBK470195/
4. Gu C, Ackerman AL. An oldie but a goodie: Methenamine as a nonantibiotic solution to the prevention of recurrent urinary tract infections. PLoS Pathog. 2023;19(6):e1011405. https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1011405
5. Wilson ML, Gaido L. Laboratory Diagnosis of Urinary Tract Infections in Adult Patients. Clin Infect Dis. 2004;38(8):1150-1158. https://doi.org/10.1086/383029
From the desk of
Dr. Sonia Bahlani
Pelvic pain specialist/ gynecologist
https://www.pelvicpaindoc.com
