A urinary tract infection, more commonly referred to as a bladder infection or UTI, is a very painful condition in which bacteria enters through the urethra and into the bladder and causes several symptoms including but not limited to frequent urge to urinate, pain during urination, and bloody urine. If left untreated, a bladder infection can turn into a kidney infection, which is a much more serious condition that can result in permanent damage and/or kidney failure and even death.