Rarely occurs before 50 years of age.
Often associated with abnormal structure or function of the urinary tract (complicated UTI).
Catheter-associated UTI is the most common cause of nosocomial infection.
Imaging of the urinary tract is recommended for men with persistent hematuria, voiding dysfunction without a clearly identifiable cause such as benign prostatic hyperplasia (BPH), failure of initial therapy, or signs of upper tract infection.
Should generally be treated with a fluoroquinolone antibiotic for 7 to 14 days. Asymptomatic bacteriuria does not require treatment except before urologic procedures.
Urinary tract infection (UTI) is an inflammatory reaction of the urinary tract epithelium in response to pathogenic microorganisms, most commonly bacteria.  The diagnosis is confirmed when urine obtained from a symptomatic male demonstrates growth of a significant amount (≥10^2 colony-forming units [CFU]/mL) of one organism, or a predominance of one organism, when cultured.  
Residency Program Director
Department of Family and Community Medicine
Texas Tech University Health Sciences Center
Permian Basin Campus
TJB declares that he has no competing interests.
Professor of Family Medicine and Chairman of the Department of Family Medicine
University of Texas Health Sciences Center
RV declares that he has no competing interests.
Professor of Urology
Institute of Cellular Medicine
Newcastle upon Tyne
RP declares that he has no competing interests.
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