What is the etiology of bacterial vaginosis (BV)?

Updated: Oct 25, 2018
  • Author: Philippe H Girerd, MD; Chief Editor: Michel E Rivlin, MD  more...
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Bacterial vaginosis is a polymicrobic synergistic infection. As described in Pathophysiology, the normally predominant lactobacilli population is reduced in the vagina, while populations of Gardnerella vaginalis and other anaerobes are increased.

G vaginalis is the only member of its genus. Originally, it was known as Haemophilus vaginalis and then as Corynebacterium vaginale. It is a nonmotile, nonflagellated, nonsporeforming, facultative anaerobic, and nonencapsulated bacteria.

Although G vaginalis appears microscopically as a gram-variable rod, it is officially categorized as a gram-negative rod.

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