What is a common symptom of pyleonephritis?

Flank pain is a hallmark symptom of pyelonephritis, which is an infection of the kidney. This condition often arises from an ascending urinary tract infection, and the inflammation and swelling in the kidney typically result in pain that is felt in the flank area, which is the region on either side of the lower back. Patients often describe this pain as a deep, aching sensation that may radiate to the abdomen or genital area. In addition to flank pain, individuals with pyelonephritis may also present with other symptoms such as fever, chills, and dysuria, but the flank pain is a key indicator specific to this condition. Recognizing this symptom is crucial for timely diagnosis and treatment to prevent further complications.