Bv (bacterial vaginosis) Inflammation of the vulva/vagina (vaginitis) caused by a change in the balance of vaginal bacteria. It’s not an STD. Things like douching or having sex with a new partner can lead to BV. Sasha Co- Founder of Psych n Sex, previous writer and campus educator for the Kinsey Institute & published psychology researcher. Manhattan girl obsessed with post ww2 abstract expressionism, beet juice, vintage clothing & Scandinavia.