noun
- An infection of the kidney and the tube (ureter) that carries urine from the kidney to the bladder, typically caused by bacteria.
Usage: medical term; uncountable noun
Examples
- The patient was diagnosed with pyelonephritis after presenting with fever and back pain.
- Untreated urinary tract infections can progress to pyelonephritis.
- Pyelonephritis requires prompt antibiotic treatment to prevent serious complications.
- Symptoms of pyelonephritis include flank pain, nausea, and high fever.
- The doctor ordered a urine culture to confirm the diagnosis of pyelonephritis.