Hai, Labia minora
may be swollen in any type of infection or inflammation of labia or adjacent parts. Even it may be due to yeast infection or any STD, Bartholin's abcess or any other non-venereal skin conditions like furuncle
, hair folliculitis
. Are associated with increase in discharge? Do you have any injury
in your vulva? It may even be swollen due to generalized edema condition of your body. Better go to your gynecologist or dermato-venereologist as soon as possible get examined and investigated and get cured soon.