Type	Etiology	Clinical symptoms			Clinical signs
		Discharge	Pain	Pruritus	Vagina	Vulva
Bacterial vaginosis	Gardnerella vaginalis, Mycoplasma hominis	Malodorous; homogenous; clear, white, or gray; fishy odor	Not primary symptom	Not primary symptom	No signs of inflammation	Unaffected
	Anaerobic bacteria: Prevotella species, Mobiluncus species
Trichomoniasis	Trichomonas vaginalis	Green-yellow, frothy	Pain with sexual intercourse, vaginal soreness, dysuria	Not primary symptom	Signs of inflammation, “strawberry cervix”	Vestibular erythema may be present
Vulvovaginal candidiasis	Candida albicans, Candida krusei, Candida glabrata	White, thick, lack of odor	Burning, dysuria, dyspareunia	Frequent	Signs of inflammation, edema	Excoriations
Atrophic vaginitis	Estrogen deficiency	Yellow, greenish, lack of odor	Vaginal dryness, pain with sexual intercourse	Rare	Vagina mildly erythematous, easily traumatized	Vestibule thin and dry; labia majora lose their subcutaneous fat; labia minora irritated and friable
Erosive lichen planus	Etiology is unknown	Yellow or gray	Intense pain, dyspareunia, postcoital bleeding	Intense	Erythema with friable epithelium	Erosions, white plaques
Irritant or allergic contact dermatitis	Contact irritation or allergic reaction with episodic flares	Minimal	Burning on acute contact, soreness	More likely in allergic reactions	Vulvar erythema possible	Erythema with or without edema; vesicles or bullae rare