A urinary tract infection (UTI) is an infection of any part of the urinary system, including the kidneys, ureters, bladder and urethra. A recurrent urinary tract infection is defined by a person who experiences at least two infections of the bladder in six months, or three infections in one year.
Typically affecting women more often than men, these infections occur when bacteria enter the urinary tract through the urethra. While painful if limited to the bladder, urinary tract infections can cause serious problems in the kidneys if not treated properly.
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