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Signs and symptoms

Although UTI symptoms vary, many people will experience:

  • A strong, persistent desire to urinate,
  • Increased frequency of urination,
  • A burning sensation during urination,
  • A cloudy strong-smelling urine.

Those with UTIs may also have pressure in the lower abdomen and small amounts of blood in the urine. If the UTI is more severe and/or has spread into the kidneys, it may cause flank pain, high fever, shaking, chills, nausea or vomiting. Fevers are also seen when the infection spreads into the blood (septicaemia). Some patients may also experience mental changes and confusion with a UTI, while others may not have any symptoms at all.


Last Review Date: December 30, 2018