Urinary Tract Infections (UTIs) are an infection anywhere in the urinary tract system, though we commonly think of them as bladder infections. For most younger adults, they are a simple infection that causes pain in the low pelvis, burning with urination and frequency. However, as we age, typical symptoms are different and the infections can be more serious. UTIs are a common source of infection in the elderly, ranked #2 after upper respiratory infections. If untreated, they can lead to infection of the kidneys (pyelonephritis), sepsis (overwhelming infection in the blood stream), and even death.