 BV often occurs in both partners in a lesbian relationship; a recent study of women with BV found that 81% had partners with BV.Lesbians are not included in a category of frequency of HIV transmission, although transmission is possible through vaginal and cervical fluids and secretions; the highest rate of transmission of HIV from women to women is among those who have sexual intercourse with men, or participate in intravenous drug use.Many doctors consider sex between women to have negligible risk for transmission of STIs and fail to offer any information on prevention of STI transmission for sex involving two women.