Routine anaerobic culture of urine identified the urinary tract as the
primary focus of sepsis in a postoperative patient with Bacteroides f
ragilis septicaemia. Specimens of urine from six other symptomatic pat
ients grew > 10(8) cfu/litre of a Bacteroides species in pure growth.
The significance of these isolates is discussed. Multipoint technology
and the availability of anaerobic work stations have facilitated anae
robic culture and reduced its cost. The incorporation of anaerobic cul
ture of urine into routine laboratory practice may be clinically valua
ble and should be considered.