Wet mount shows clue cells: vaginal epithelial cells with "stippled appearance" due to coverage by<unk> Whiff Test: fishy odor with 10% KOH prep
CDC recommends testing all women with<unk>  for HIV and other STDs 
Amsel criteria (3/4 must be present)
Homogeneous, thin, gray-white discharge
Positive whiff test
Vaginal pH>4.5
Clue cells on wet mount (at least 20% of epithelial cells)
Bacterial vaginosis
Atrophic vaginitis
Candida vaginitis
Rhinorrhea
Trichomonas vaginalis
Candida vulvovaginitis
Contact vulvovaginitis
Cervicitis