What is pyelonephritis commonly known as?

Pyelonephritis is commonly referred to as a kidney infection. This condition occurs when bacteria or viruses infect the kidneys, leading to inflammation and potential complications if not treated properly. As a type of upper urinary tract infection, pyelonephritis typically results in symptoms such as fever, flank pain, and urinary symptoms like urgency and frequency. Understanding this term is essential, as it helps in recognizing the seriousness of the infection, which can affect kidney function if left untreated. Other options listed do not accurately describe pyelonephritis; kidney stones refer to solid mineral deposits that form in the kidneys, urinary obstruction pertains to blockages within the urinary tract, and bladder infections specifically refer to infections located in the bladder rather than the kidneys.