A urinary tract infection (UTI) can attack any part of the urinary system, including the kidneys. When a person refers to a UTI, they are normally talking regarding a bladder infection or a lower UTI. Bladder infections are the most common kind of urinary tract infection. A kidney infection can happen when bacteria, or less often fungi, move up the urinary tract to affect the kidneys. A UTI typically needs professional treatment to prevent serious complexities. Lower UTI symptoms: foul-smelling urine pain during urination an urgent necessity to urinate but a very less quantity of urine bloody or cloudy urine Kidney infection symptoms If a person does not take effective treatment for a UTI in the lower tract, the bacteria or fungi can move up and affect the kidneys. In some cases, UTI begins attacking the uppermost portion of the urinary tract. There are several reasons for urinary tract infection, like holding urine for a long period, use unclean sanitary pads, constipation, intercour...