Kidney infections are rare, but they can be severe. About one in every 30 cases of a UTI will lead to a kidney infection, and they are more common among women than men; although, they can affect anyone at any age. What exactly are kidney infections, though? Our AFC Urgent Care Gastonia team has some answers, so read on. What Exactly Is a Kidney Infection? A kidney infection, or pyelonephritis, is a type of urinary ...