What is unintact skin for HIV?

I'm not too sure why my last post was deleted, but nobody answered my question. I know HIV can't infect through intact skin, but what constitutes unintact skin that could be a potential for infection? Would irritation cause a portal, or a scratch? Would the keratin layer of the skin need to be broken, or would the cut have to be bleeding?

[ro345]

DEAR
SKIN TO SKIN HAS NO CHANCE TO GET HIV. IF CURRENTLY BLEEDING BOTH SKIN IN SAME TIME, THERE IS VERY SMALL CHANCE TO GET.

[Teak]

Move on.

[hemsky111]

That's what I'm trying to do, but I'm having a hard time...
If my perianal skin was inflamed/irritated, but I saw no bleeding, would that even be a possible port? Or would there need to be actual active bleeding?

[Teak]

MOVE ON.