My vagina was very itchy today and when i went to the bathroom my labia was very very swollen. what could be the problem?

Itchy vagina: Yeast infections occur when the yeast, candida, grow excessively in the vagina and vulva. Pregnancy, intercourse, antibiotics, and a weakened immune system can all make women more likely to get a yeast infection. In addition to itching and irritation, a yeast infection will produce a thick, white, cheesy discharge, as well as cause selling. See your Gyn or try an otc remedy. Hope this helps. DrG