A urinary tract infection (UTI) is an infection that occurs in any part of the urinary system, which is responsible for making, storing, and removing urine from the body. The urinary system includes the kidneys (which filter waste from the blood), ureters (tubes that carry urine from the kidneys to the bladder), the bladder (which stores urine), and the urethra (the tube that carries urine out of the body).
Most UTIs are caused by bacteria entering the urinary tract, usually through the urethra, and multiplying in the bladder. While infections most commonly affect the bladder and urethra, they can sometimes spread to the kidneys, which can lead to more serious health problems if not treated promptly.










