Urinary Tract Infection: Causes, Symptoms & Treatment
By Rachael Rettner, Senior Writer | August 14, 2017 11:25pm ET
A urinary tract infection, or UTI, is a bacterial infection of any part of the urinary tract, which includes the bladder, kidneys, ureters (tubes that connect the kidneys to the bladder) and the urethra (the tube that allows the bladder to be emptied). Infections of the bladder or the urethra are the most common.
In the United States, about 8.1 million people visit the doctor due to a urinary tract infection each year, according to the American Urological Association.
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