Highlights & Basics
- Urinary tract infections in women can be clinically categorized into uncomplicated/complicated, acute, or recurrent.
- Escherichia coli is the most common organism in uncomplicated infections.
- Costovertebral angle tenderness together with fever suggests pyelonephritis.
- Diagnosed using urine dipstick, microscopic urinalysis (bacteria, white blood cell, red blood cell), and urine culture.
- Antibiotic selection should be guided by local bacterial susceptibilities and guidelines, or based on known urine culture and sensitivity.
Quick Reference
History & Exam
Key Factors
Other Factors
Diagnostics Tests
Treatment Options
Definition
Epidemiology
Etiology
Pathophysiology
Citations
European Association of Urology. EAU guidelines on urological infections. Mar 2023 [internet publication].[Full Text]
Nicolle LE, Gupta K, Bradley SF, et al. Clinical practice guideline for the management of asymptomatic bacteriuria: 2019 update by the Infectious Diseases Society of America. Clin Infect Dis. 2019 Mar 21.[Abstract][Full Text]
Bent S, Nallamothu BK, Simel DL, et al. Does this woman have an acute uncomplicated urinary tract infection? JAMA. 2002 May 22-29;287(20):2701-10.[Abstract]
Gupta K, Hooton TM, Naber KG, et al. International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: a 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases. Clin Infect Dis. 2011 Mar 1;52(5):e103-20.[Abstract][Full Text]
1. European Association of Urology. EAU guidelines on urological infections. Mar 2023 [internet publication].[Full Text]
2. Anger J, Lee U, Ackerman AL, et al. Recurrent uncomplicated urinary tract infections in women: AUA/CUA/SUFU guideline. J Urol. 2019 Aug;202(2):282-289.[Abstract][Full Text]
3. Nicolle LE. The Paradigm Shift to Non-Treatment of Asymptomatic Bacteriuria. Pathogens. 2016 Apr 19;5(2). pii: E38.[Abstract][Full Text]
4. Cortes-Penfield NW, Trautner BW, Jump RLP. Urinary tract infection and asymptomatic bacteriuria in older adults. Infect Dis Clin North Am. 2017 Dec;31(4):673-88.[Abstract][Full Text]
5. Zalmanovici Trestioreanu A, Lador A, Sauerbrun-Cutler MT, et al. Antibiotics for asymptomatic bacteriuria. Cochrane Database Syst Rev. 2015 Apr 8;(4):CD009534.[Abstract][Full Text]
6. Nicolle LE, Gupta K, Bradley SF, et al. Clinical practice guideline for the management of asymptomatic bacteriuria: 2019 update by the Infectious Diseases Society of America. Clin Infect Dis. 2019 Mar 21.[Abstract][Full Text]
7. Schappert SM. National Ambulatory Medical Care Survey: 1992 summary. Adv Data. 1994 Aug 18;(253):1-20.[Abstract][Full Text]
8. Foxman B, Barlow R, D'Arcy H, et al. Urinary tract infection: self-reported incidence and associated costs. Ann Epidemiol. 2000 Nov;10(8):509-15.[Abstract]
9. Mabeck CE. Treatment of uncomplicated urinary tract infection in non-pregnant women. Postgrad Med J. 1972 Feb;48(556):69-75.[Abstract]
10. Ronald AR, Nicolle LE, Stamm E, et al. Urinary tract infection in adults: research priorities and strategies. Int J Antimicrob Agents. 2001 Apr;17(4):343-8.[Abstract]
11. Stamm WE, Hooton TM. Management of urinary tract infections in adults. N Engl J Med. 1993 Oct 28;329(18):1328-34.[Abstract]
12. Nicolle LE. A practical guide to the management of complicated urinary tract infection. Drugs. 1997 Apr;53(4):583-92.[Abstract]
13. Concia E, Bragantini D, Mazzaferri F. Clinical evaluation of guidelines and therapeutic approaches in multi drug-resistant urinary tract infections. J Chemother. 2017 Dec;29(supl 1):19-28.[Abstract][Full Text]
14. Bader MS, Loeb M, Brooks AA. An update on the management of urinary tract infections in the era of antimicrobial resistance. Postgrad Med. 2017 Mar;129(2):242-58. [Abstract]
15. Czaja CA, Hooton TM. Update on acute uncomplicated urinary tract infection in women. Postgrad Med. 2006 Jun-Jul;119(1):39-45.[Abstract]
16. Neu HC. Urinary tract infections. Am J Med. 1992 Apr 6;92(4A):63S-70S.[Abstract]
17. Safir MH, Schaeffer AJ. Urinary tract infection: simple and complicated. AUA Update series. 1997;16:10.
18. Flores-Mireles AL, Walker JN, Caparon M, et al. Urinary tract infections: epidemiology, mechanisms of infection and treatment options. Nat Rev Microbiol. 2015 May;13(5):269-84. [Abstract][Full Text]
19. Raz R, Stamm WE. A controlled trial of intravaginal estriol in postmenopausal women with recurrent urinary tract infections. N Engl J Med. 1993 Sep 9;329(11):753-6.[Abstract]
20. Hooton TM. Epidemiology. In: Stanton SL, Dwyer PL, eds. Urinary tract infection in the female. London: Martin Dunitz Ltd; 2000.
21. Scholes D, Hooton TM, Roberts PL, et al. Risk factors for recurrent urinary tract infection in young women. J Infect Dis. 2000 Oct;182(4):1177-82.[Abstract][Full Text]
22. Gupta K, Hillier SL, Hooton TM, et al. Effects of contraceptive method on the vaginal microbial flora: a prospective evaluation. J Infect Dis. 2000 Feb;181(2):595-601.[Abstract]
23. Eschenbach DA, Patton DL, Hooton TM, et al. Effects of vaginal intercourse with and without a condom on vaginal flora and vaginal epithelium. J Infect Dis. 2001 Mar 15;183(6):913-8.[Abstract]
24. Fihn SD, Boyko EJ, Chen CL, et al. Use of spermicide-coated condoms and other risk factors for urinary tract infection caused by Staphylococcus saprophyticus. Arch Intern Med. 1998 Feb 9;158(3):281-7.[Abstract]
25. Stamm WE, Raz R. Factors contributing to susceptibility of postmenopausal women to recurrent urinary tract infections. Clin Infect Dis. 1999 Apr;28(4):723-5.[Abstract]
26. Cardozo L, Lose G, McClish D, et al. A systematic review of estrogens for recurrent urinary tract infections: third report of the hormones and urogenital therapy (HUT) committee. Int Urogynecol J Pelvic Floor Dysfunct. 2001;12(1):15-20.[Abstract]
27. Perrotta C, Aznar M, Mejia R, et al. Oestrogens for preventing recurrent urinary tract infection in postmenopausal women. Cochrane Database Syst Rev. 2008 Apr 16;(2):CD005131.[Abstract][Full Text]
28. Trinkaus M, Chin S, Wolfman W, et al. Should urogenital atrophy in breast cancer survivors be treated with topical estrogens? Oncologist. 2008 Mar;13(3):222-31.[Abstract][Full Text]
29. Hu KK, Boyko EJ, Scholes D, et al. Risk factors for urinary tract infections in postmenopausal women. Arch Intern Med. 2004 May 10;164(9):989-93.[Abstract][Full Text]
30. Hooton TM, Scholes D, Hughes JP, et al. A prospective study of risk factors for symptomatic urinary tract infection in young women. N Engl J Med. 1996 Aug 15;335(7):468-74.[Abstract]
31. Jackson SL, Boyko EJ, Scholes D, et al. Predictors of urinary tract infection after menopause: a prospective study. Am J Med. 2004 Dec 15;117(12):903-11.[Abstract]
32. Hooton TM, Stamm WE. The vaginal flora and UTIs: molecular pathogenesis and clinical management. Washington, DC: ASM Press; 1996:67-94.
33. Smith HS, Hughes JP, Hooton TM, et al. Antecedent antimicrobial use increases the risk of uncomplicated cystitis in young women. Clin Infect Dis. 1997 Jul;25(1):63-8.[Abstract]
34. Bent S, Nallamothu BK, Simel DL, et al. Does this woman have an acute uncomplicated urinary tract infection? JAMA. 2002 May 22-29;287(20):2701-10.[Abstract]
35. Car J. Urinary tract infections in women: diagnosis and management in primary care. BMJ. 2006 Jan 14;332(7533):94-7.[Abstract]
36. Wagenlehner FM, Weidner W, Naber KG. An update on uncomplicated urinary tract infections in women. Curr Opin Urol. 2009Jul;19(4):368-74.[Abstract]
37. National Institute for Health and Care Excellence. Urinary tract infections in adults. June 2015 [internet publication].[Full Text]
38. Public Health England. Guidance for primary care on diagnosing and understanding culture results for urinary tract infection (UTI). November 2018 [internet publication].[Full Text]
39. Little P, Turner S, Rumsby K, et al. Developing clinical rules to predict urinary tract infection in primary care settings: sensitivity and specificity of near patient tests (dipsticks) and clinical scores. Br J Gen Pract. 2006 Aug;56(529):606-12.[Abstract][Full Text]
40. Little P, Turner S, Rumsby K, et al. Dipsticks and diagnostic algorithms in urinary tract infection: development and validation, randomised trial, economic analysis, observational cohort and qualitative study. Health Technol Assess. 2009 Mar;13(19):iii-iv, ix-xi, 1-73. [Abstract][Full Text]
41. Hooton TM, Stamm WE. Diagnosis and treatment of uncomplicated urinary tract infection. Infect Dis Clin North Am. 1997 Sep;11(3):551-81.[Abstract]
42. Wilson ML, Gaido L. Laboratory diagnosis of urinary tract infections in adult patients. Clin Infect Dis. 2004 Apr 15;38(8):1150-8.[Abstract][Full Text]
43. Schmiemann G, Kniehl E, Gebhardt K, et al. The diagnosis of urinary tract infection: a systematic review. Dtsch Arztebl Int. 2010 May 28;107(21):361-7.[Abstract][Full Text]
44. Browne RF, Zwirewich C, Torreggiani WC. Imaging of urinary tract infection in the adult. Eur Radiol. 2004 Mar;14 (suppl 3):E168-83.[Abstract]
45. Köves B, Cai T, Veeratterapillay R, et al. Benefits and harms of treatment of asymptomatic bacteriuria: a systematic review and meta-analysis by the European Association of Urology Urological Infection Guidelines Panel. Eur Urol. 2017 Dec;72(6):865-8.[Abstract][Full Text]
46. The American College of Obstetricians and Gynecologists. Urinary tract infections in pregnant individuals. Obstet Gynecol. 2023 Aug 1;142(2):435-45.[Abstract][Full Text]
47. American College of Radiology. ACR appropriateness criteria: acute pyelonephritis. 2022 [internet publication].[Full Text]
48. American College of Radiology. ACR appropriateness criteria: recurrent lower urinary tract infections in women. 2020 [internet publication].[Full Text]
49. American College of Radiology. ACR Appropriateness Criteria: Hematuria. 2019 [internet publication].[Full Text]
50. Epp A, Larochelle A. No. 250-recurrent urinary tract infection. J Obstet Gynaecol Can. 2017 Oct;39(10):e422-31.[Abstract]
51. Zalmanovici TA, Green H, Paul M, et al. Antimicrobial agents for treating uncomplicated urinary tract infection in women. Cochrane Database Syst Rev. 2010 Oct 6;(10):CD007182.[Abstract][Full Text]
52. Gupta K, Hooton TM, Naber KG, et al. International clinical practice guidelines for the treatment of acute uncomplicated cystitis and pyelonephritis in women: a 2010 update by the Infectious Diseases Society of America and the European Society for Microbiology and Infectious Diseases. Clin Infect Dis. 2011 Mar 1;52(5):e103-20.[Abstract][Full Text]
53. Dawson-Hahn EE, Mickan S, Onakpoya I, et al. Short-course versus long-course oral antibiotic treatment for infections treated in outpatient settings: a review of systematic reviews. Fam Pract. 2017 Sep 1;34(5):511-9.[Abstract][Full Text]
54. Huttner A, Kowalczyk A, Turjeman A, et al. Effect of 5-day nitrofurantoin vs single-dose fosfomycin on clinical resolution of uncomplicated lower urinary tract infection in women: a randomized clinical trial. JAMA. 2018 May 1;319(17):1781-9.[Abstract][Full Text]
55. Tamma PD, Aitken SL, Bonomo RA, et al. Infectious Diseases Society of America 2023 guidance on the treatment of antimicrobial resistant gram-negative infections. Clin Infect Dis. 2023 Jul 18:ciad428.[Abstract][Full Text]
56. O'Brien KA, Zhang J, Mauldin PD, et al. Impact of a stewardship-initiated restriction on empirical use of ciprofloxacin on nonsusceptibility of Escherichia coli urinary isolates to ciprofloxacin. Pharmacotherapy. 2015 May;35(5):464-9.[Abstract]
57. US Food and Drug Administration. Fluoroquinolone antibacterial drugs: drug safety communication - FDA advises restricting use for certain uncomplicated infections. July 2016 [internet publication].[Full Text]
58. Gágyor I, Bleidorn J, Kochen MM, et al. Ibuprofen versus fosfomycin for uncomplicated urinary tract infection in women: randomised controlled trial. BMJ. 2015 Dec 23;351:h6544.[Abstract][Full Text]
59. Kronenberg A, Bütikofer L, Odutayo A, et al. Symptomatic treatment of uncomplicated lower urinary tract infections in the ambulatory setting: randomised, double blind trial. BMJ. 2017 Nov 7;359:j4784.[Abstract][Full Text]
60. Brown KA, Khanafer N, Daneman N, et al. Meta-analysis of antibiotics and the risk of community-associated Clostridium difficile infection. Antimicrob Agents Chemother. 2013 May;57(5):2326-32.[Abstract][Full Text]
61. van Nieuwkoop C, van der Starre WE, Stalenhoef JE, et al. Treatment duration of febrile urinary tract infection: a pragmatic randomized, double-blind, placebo-controlled non-inferiority trial in men and women. BMC Med. 2017 Apr 3;15(1):70.[Abstract][Full Text]
62. Bader MS, Hawboldt J, Brooks A. Management of complicated urinary tract infections in the era of antimicrobial resistance. Postgrad Med. 2010 Nov;122(6):7-15.[Abstract]
63. Medicines and Healthcare products Regulatory Agency. Nitrofurantoin: reminder of the risks of pulmonary and hepatic adverse drug reactions. Apr 2023 [internet publication].[Full Text]
64. Ward K, Theiler RN. Once-daily dosing of gentamicin in obstetrics and gynecology. Clin Obstet Gynecol. 2008;51(3):498-506.[Abstract][Full Text]
65. Lee M, Bozzo P, Einarson A, et al. Urinary tract infections in pregnancy. Can Fam Physician. 2008;54(6):853-4.[Abstract][Full Text]
66. Committee on Obstetric Practice. Committee opinion no. 717: sulfonamides, nitrofurantoin, and risk of birth defects. Obstet Gynecol. 2017 Sep;130(3):e150-52.[Abstract]
67. Damiano R, Quarto G, Bava I, et al. Prevention of recurrent urinary tract infections by intravesical administration of hyaluronic acid and chondroitin sulphate: a placebo-controlled randomised trial. Eur Urol. 2011 Apr;59(4):645-51.[Abstract]
68. Ahmed H, Davies F, Francis N, et al. Long-term antibiotics for prevention of recurrent urinary tract infection in older adults: systematic review and meta-analysis of randomised trials. BMJ Open. 2017 May 29;7(5):e015233.[Abstract][Full Text]
69. Gupta K, Sahm DF, Mayfield D, et al. Antimicrobial resistance among uropathogens that cause community-acquired urinary tract infections in women: a nationwide analysis. Clin Infect Dis. 2001 Jul 1;33(1):89-94.[Abstract]
70. Gupta K, Hooton TM, Roberts PL, et al. Patient-initiated treatment of uncomplicated recurrent urinary tract infections in young women. Ann Intern Med. 2001 Jul 3;135(1):9-16.[Abstract]
71. Stapleton AE. The vaginal microbiota and urinary tract infection. Microbiol Spectr. 2016 Dec;4(6):.[Abstract][Full Text]
72. Dueñas-Garcia OF, Sullivan G, Hall CD, et al. Pharmacological agents to decrease new episodes of recurrent lower urinary tract infections in postmenopausal women. A systematic review. Female Pelvic Med Reconstr Surg. 2016 Mar-Apr;22(2):63-9.[Abstract]
73. European Medicines Agency. Four-week limit for use of high-strength estradiol creams. October 2019 [internet publication].[Full Text]
74. Hickling DR, Nitti VW. Management of recurrent urinary tract infections in healthy adult women. Rev Urol. 2013;15(2):41-8.[Abstract][Full Text]
75. Castanheira M, Huband MD, Mendes RE, et al. Meropenem-vaborbactam tested against contemporary Gram-negative isolates collected worldwide during 2014, including carbapenem-resistant, KPC-producing, multidrug-resistant, and extensively drug-resistant Enterobacteriaceae. Antimicrob Agents Chemother. 2017 Aug 24; 61: e00567-17.[Abstract]
76. Cox G, Ejim L, Stogios PJ, et al. Plazomicin retains antibiotic activity against most aminoglycoside modifying enzymes. ACS Infect Dis. 2018 Jun 8;4(6):980-7.[Abstract]
77. Wagenlehner FME, Cloutier DJ, Komirenko AS, et al. Once-daily plazomicin for complicated urinary tract infections. N Engl J Med. 2019 Feb 21;380(8):729-40.[Abstract][Full Text]
78. Stapleton A. Novel approaches to prevention of urinary tract infections. Infect Dis Clin North Am. 2003 Jun;17(2):457-71.[Abstract]
79. Cruz F, Dambros M, Naber KG, et al. Recurrent urinary tract infections: Uro-Vaxom, a new alternative. Eur Urol Suppl. 2009;8(9):762-8.
80. Huttner A, Hatz C, van den Dobbelsteen G, et al. Safety, immunogenicity, and preliminary clinical efficacy of a vaccine against extraintestinal pathogenic Escherichia coli in women with a history of recurrent urinary tract infection: a randomised, single-blind, placebo-controlled phase 1b trial. Lancet Infect Dis. 2017 May;17(5):528-37.[Abstract]
81. Yang B, Foley S. First experience in the UK of treating women with recurrent urinary tract infections with the bacterial vaccine Uromune®. BJU Int. 2018 Feb;121(2):289-92. [Abstract]
82. Abad CL, Safdar N. The role of lactobacillus probiotics in the treatment or prevention of urogenital infections - a systematic review. J Chemother. 2009 Jun;21(3):243-52.[Abstract]
83. Beerepoot MA, ter Riet G, Nys S, et al. Lactobacilli vs antibiotics to prevent urinary tract infections: a randomized, double-blind, noninferiority trial in postmenopausal women. Arch Intern Med. 2012 May 14;172(9):704-12.[Abstract]
84. Reid G, Bruce AW, Taylor M. Influence of three-day antimicrobial therapy and lactobacillus vaginal suppositories on recurrence of urinary tract infections. Clin Ther. 1992 Jan-Feb;14(1):11-6.[Abstract]
85. Baerheim A, Larsen E, Digranes A. Vaginal application of lactobacilli in the prophylaxis of recurrent lower urinary tract infection in women. Scand J Prim Health Care. 1994 Dec;12(4):239-43.[Abstract]
86. Domenici L, Monti M, Bracchi C, et al. D-mannose: a promising support for acute urinary tract infections in women. A pilot study. Eur Rev Med Pharmacol Sci. 2016 Jul;20(13):2920-5.[Abstract][Full Text]
87. Kranjčec B, Papeš D, Altarac S. D-mannose powder for prophylaxis of recurrent urinary tract infections in women: a randomized clinical trial. World J Urol. 2014 Feb;32(1):79-84.[Abstract]
88. Bonkat G, Cai T, Veeratterapillay R, et al. Management of urosepsis in 2018. Eur Urol Focus. 2018 Nov 15;5(1):5-9.[Abstract][Full Text]
89. Coelho RF, Schneider-Monteiro ED, Mesquita JL, et al. Renal and perinephric abscesses: analysis of 65 consecutive cases. World J Surg. 2007 Feb;31(2):431-6.[Abstract]
90. Avorn J, Monane M, Gurwitz JH, et al. Reduction of bacteriuria and pyuria after ingestion of cranberry juice. JAMA. 1994 Mar 9;271(10):751-4.[Abstract]
91. Nicolle LE. Urinary tract infection in long-term-care facility residents. Clin Infect Dis. 2000 Sep;31(3):757-61.[Abstract]
92. Miller JL, Krieger JN. Urinary tract infections: cranberry juice, underwear, and probiotics in the 21st century. Urol Clin North Am. 2002 Aug;29(3):695-9.[Abstract]
93. Williams G, Hahn D, Stephens JH, et al. Cranberries for preventing urinary tract infections. Cochrane Database Syst Rev. 2023 Apr 17;4(4):CD001321.[Abstract]
94. Wang CH, Fang CC, Chen NC, et al. Cranberry-containing products for prevention of urinary tract infections in susceptible populations: a systematic review and meta-analysis of randomized controlled trials. Arch Intern Med. 2012 Jul 9;172(13):988-96.[Abstract][Full Text]
95. Occhipinti A, Germano A, Maffei ME. Prevention of urinary tract infection with Oximacro, a cranberry extract with a high content of A-type proanthocyanidins: a pre-clinical double-blind controlled study. Urol J. 2016 Apr 16;13(2):2640-9.[Abstract]
96. Foxman B, Cronenwett AE, Spino C, et al. Cranberry juice capsules and urinary tract infection after surgery: results of a randomized trial. Am J Obstet Gynecol. 2015 Aug;213(2):194.e1-8.[Abstract][Full Text]
97. Maki KC, Kaspar KL, Khoo C, et al. Consumption of a cranberry juice beverage lowered the number of clinical urinary tract infection episodes in women with a recent history of urinary tract infection. Am J Clin Nutr. 2016 Jun;103(6):1434-42.[Abstract]
Key Articles
Referenced Articles
Sign in to access our clinical decision support tools