Isit possible to get hiv from head lice? (if they had infected blood in them).

Never documented: While we often like to say in medicine, never say never, parasitic transfer of HIV, has not been documented. I believe it is the minuscule amount of blood that can be transmitted through a parasite like lice, that would make transfer of virus to a normal host unlikely. Get rid of the lice by the way and feel better!

Lice: have never been shown to transmit HIV.