Inflammatory reaction of the skin or mucous membrane of the vulva or vagina caused by pathogenic infection or other irritation.
Allergic reactions of the labia and surrounding skin to personal hygiene products such as detergents, condoms and sanitary towels used.
systemic skin disease or autoimmune disease involving the labia localis.
Malignant tumours of the vulva or vagina.
Bad habits such as improper local cleaning of the vulva and unclean sexual life, resulting in repeated irritation of the vulva by menstruation, intravaginal secretions, urine and faeces.