Few data are available on the risk of STDs conferred by sex between women, but
transmission risk probably varies by the specific STD and sexual practice (e.g., oral-genital sex,
vaginal or anal sex using hands, fingers, or penetrative sex items, and oral-anal sex)
170,171
.
Practices involving digital-vaginal or digital-anal contact, particularly with shared penetrative
sex items, present a possible means for transmission of infected cervicovaginal or anal
secretions. This possibility is most directly supported by reports of shared trichomonas
infections
172,173
and HIV transmitted sexually between women by concordant drug resistance
genotype testing and by phylogenetic linkage analysis.
174,175
There is also a high prevalence of
BV among monogamous WSW171
However, the majority of self-identified WSW (53%–97%)
have had sex with men in the past and might continue this practice, with 5%-28% of WSW
reporting male partners within the past year.
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