Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025
Definition
Pyelonephritis is a type of urinary tract infection (UTI) that affects the kidneys. It can lead to severe complications if left untreated, including kidney damage and sepsis.
AP course connection
Topic 23.2: 23.2 Bacterial Infections of the Urinary System