I have a yellow green discharge. it also itches . i am a virgin, what does this mean?

Likely germ issue: The surfaces inside your vagina are lined with mucus producing glands. That mucus has water, protein & sugars that are good food for any chance germs that may make it inside. Virgin or not, chance contamination by fecal or skin surface germs can trigger a vaginal infection. There are some OTC treatments but you may need to contact your doc for guidance.