In recent years, novel biomarkers of renal dysfunction have attracted attention for the diagnosis of UTIs. NGAL is a 25 kDa protein that belongs to the lipocalin. It acts as a transporter for small hydrophobic molecules and is involved in many physiological processes, such as modulating inflammation, innate immune response, and maintaining metabolic homeostasis

Inclusion Criteria:

• above 20 years Suspected have pyelonphirtis

Exclusion Criteria:

• age below 20

All adult patient had fever due to renal infection