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The urinary tract is made up of the
kidneys, the ureters, the bladder and
the urethra. Each plays an important
role in helping your body to eliminate
waste products in the form of urine.
The main job of the kidneys is to
remove wastes from the blood and
return the cleaned blood back to the
body. The ureters are tubes that carry
the waste products, as urine, from the
kidneys to the bladder. The bladder
stores urine until it passes out of the
body, when you urinate, through a tube
called the urethra.
■ What is a urinary tract
infection?
A urinary tract infection (UTI) is an
inflammation usually caused by bacteria
(or germs) attacking the kidneys,
ureters, bladder or urethra. Under
normal circumstances the urinary tract
is sterile, or free of bacteria.