A number of infectious agents can be sexually transmitted, including during a sexual assault. The most common sexually transmitted infections (STIs) acquired following a sexual assault are with Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis, and agents of bacterial vaginosis ( 16). However, the presence of any of these STIs in a sexually active individual does not necessarily indicate that a sexual assault occurred. The STI could have been acquired before the sexual assault during consensual sex. Generally, testing for an STI at the time of an assault does not have forensic value. It is, however, often a concern of sexual assault victims. Victims should be provided information about STIs, including symptoms to watch for, and offered follow-up counseling.