A fishy or amine odor after the addition of a 10% potassium hydroxide solution (positive whiff or sniff test). As an alternative, Gram-stain-based microbiological diagnosis of BV has been proposed.

certainly comes from a US multicenter trial in which women were initially treated during the open-labeled phase with a 10-day course of 0.75% metronidazole gel and in which asymptomatic responders ...