Bladder and Urinary Tract Infections
A urinary tract infection (UTI) is an infection involving the kidneys, ureters, bladder, or urethra. Most infections involve the lower urinary tract — the bladder and the urethra. Women are at greater risk of developing a UTI than are men. Infection limited to your bladder can be painful and annoying. However, serious consequences can occur if a UTI spreads to your kidneys. Bacteria that enter through the urethra and move into the bladder cause bladder infections. Such infections are not contagious. Doctors typically treat urinary tract infections with antibiotics.