A urinary tract infection (UTI) is an infection which occurs in any part of the urinary system, including the kidneys, ureters, bladder and urethra. It is one of the most common infections, especially among women. An adult woman is 30 times more likely to develop a UTI compared to a man.
Bladder infection (cystitis) makes up the majority of UTIs. If the infection spreads to the kidneys (pyelonephritis), this can lead to serious consequences.