Redness and swelling of the vulva is a common gynaecological symptom and may be caused by
Inflammatory reactions of the vulvar or vaginal skin or mucous membranes caused by pathogenic infections or other irritations.
an allergic reaction of the vulvar skin to personal hygiene products such as detergents, condoms and sanitary napkins used
systemic skin disease involving the vulva locally.
Malignant tumours of the vulva or vagina.
Poor lifestyle habits such as improper local cleaning of the vulva and unclean sex, resulting in repeated irritation of the vulva by menstruation, intravaginal secretions, urine and faeces.