Sexually transmitted infections (stis) are passed on from one person to another through unprotected sex or genital contact. Latex or polyurethane male condoms are highly effective in preventing hiv and certain other stds when used correctly from start to finish for each act of anal sex. People who report using condoms consistently reduced their risk of getting hiv through insertive anal sex with an hiv-positive partner, on average, by 63, and receptive anal sex with an hiv-positive partner, on average, by 72. The risk of hiv through unprotected anal intercourse is seen to be extremely high, as much 18 times greater than vaginal intercourse. Pictures and information on stds teenagers health problems from stds anonymous clinics to test for stds signs of stds what are the implications of stds. Like genital herpes, it is caused by hsv-2 and is passed on through sexual contact. There is some research about the presence of stds on hands and under fingernails, related to the research on whether stds can be transmitted by objects. The best data on whether fingering can give you an std is probably for human papillomavirus (hpv).