Bacterial vaginosis is characterized by an uniform, malodorous, white-grey discharge. The presenting symptom is generally the unpleasant smell of the vaginal discharge, particularly following the menses or intercourse. Other functional signs, such as pruritus, dysuria and dyspareunia are rare. Inflammatory signs are frequent, and can be revealed by colposcopy with the Lugol test: this shows punctuate colpitis with small regular points corresponding histologically to an inflammatory focus in the connective tissue. The term "vaginitis" is avoided because of the absence of polymorphonuclear cells in the vaginal discharge, despite the presence of inflammation. Bacterial vaginosis has been held responsible for prematurity, small birthweight and post-partum infection. Nonetheless, Gardnerella vaginalis and Mobiluncus spp can be recovered from the vaginal flora of women with no signs of inflammation.