<Li> / paɪəloʊnəˈfraɪtɪs / </Li> <Tr> <Th> Specialty </Th> <Td> Urology, nephrology </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Pyelonephritis is an inflammation of the kidney tissue, calyces, and renal pelvis . It is commonly caused by bacterial infection that has spread up the urinary tract or travelled through the bloodstream to the kidneys . </P>

Which is not a symptom of chronic pyelonephritis