The terms "UTI" and "bladder infection" are frequently used interchangeably. Bladder infections are a kind of UTI. But, not all UTIs are bladder infections. A UTI is an infection of the urinary tract and can be an infection of the kidneys, bladder, ureters, and/or urethra. A bladder infection is confined to the bladder and no other areas of the urinary tract. The reason that people use the terms "bladder infection" and "UTI" interchangeably is that the symptoms are much the same. A burning sensation while urinating, an urgency to urinate, and pelvic pain are common with bladder infections and other UTIs. A bladder infection is by far the most common type of UTI. Therefore, if you feel that you may have a UTI, it is highly likely that it is a bladder infection in the section. The good news is that bladder infections are fairly easy to treat. Indicators that your UTI isn’t a bladder infection are chills, a fever, nausea and/or vomiting, and lower back pain that is more severe than what comes with a bladder infection, infection, or pinkish or reddish urine. If you feel that you might have a UTI, see a doctor quickly to prevent the spread of the infection.