Lately the thought has been on my mind. Is it possible for someone to get an STD from a public bathroom if the person who used it previously has one? Personally I think it's extremely unlikely because I've been using public bathrooms for as long as I remember and am STD free. But the thought stays on my mind, especially when I'm out and need to relieve myself. If what I'm told is true, then an STD is something worth avoiding.