 [ Symptoms ] am i at risk of getting hiv  i do not wear underwear but today i wore underwear of a person who has aids but he has not wore his underwear since 1 month but today i wore it i have no sore or wounds on my penis am i at risk [ Disease ] the unlikely sharing of sex toys or soiled underwear would do it but in most cases trichomoniasis   a sexually transmitted parasite    is primarily spread by sexual activity