HIV is unable to reproduce outside its living host (unlike many bacteria or fungi, which may do so under suitable conditions), except under laboratory conditions; therefore, it does not spread or maintain infectiousness outside its host.
HIV is transmitted by;
Unprotected penetrative anal and/or vaginal sex
Sharing works with other IV drug users
Mother to child
Thank you even though it stained my shorts and briefs? So there could be potential passage to a mucuos membrane
Yes, you're worrying for nothing. HIV is not transmitted by exposure to fluids present on environmental surfaces, even if exposed to a cut, abrasion, etc.