 Asymptomatic bacteriuria is defin

 Asymptomatic bacteriuria is defined as true bacteriuria (> 100,000 / mL) in the absence of
specific symptoms of acute urinary tract infection
 Symptomatic urinary tract infections are divided into lower tract (acute cystitis) or upper
tract (pyelonephritis) infections
 Acute cystitis is defined as significant bacteriuria with associated bladder
mucosal invasion, and is distinguished from asymptomatic bacteriuria by the
presence of symptoms such as dysuria, urgency, frequency, nocturia,
haematuria and suprapubic discomfort in afebrile women with no evidence of
systemic illness 1,6

 Pyelonephritis is defined as the identification of at least 100,000 bacteria /
mL of a single uropathogen in a midstream MSSU culture with associated
inflammation of the renal parenchyma, calices and pelvis in the presence of
systemic illness.Symptoms include flank or renal angle pain, pyrexia, rigor,
chills, nausea and vomiting 1,6