Don't have sex (abstinence) - Although not much is known about how women get BV, women who have a new sex partner or who have had multiple sex partners are more likely to develop BV.
Monogamy - If you do have sex, stay with one partner who you are sure only has sex with you. Use condoms unless tests show that your partner does not have STDs.
Take Precautions - If you do not choose abstinence or monogomy, then limit the number of sex partners and use a latex condom during the entire sex act (vaginal, anal, and oral) every time. Be sure to put the condom on before the penis touches the vagina, mouth, or anus.
Avoid Drug Use - Mind-altering drugs, including alcohol, reduce our ability to reason, which can lead to risky behavior and risky sex.
Education - Health and sex education with special emphasis on abstinence and the use of a latex condom during vaginal, anal, or oral sex.
Do not use douches or vaginal deodorant sprays.