Ok, HSV 1 & 2 can infect both regions, tho HSV2 does prefer the genital area and HSV1 the oral region. I think that its also important that you realise that with HSV1 infections, the stats indicate that between 70 & 90% of the adult population is infected with HSV1, so thats most people! Only 30% show visible symptoms. I have HSV1 and I have never transmitted it to a partner via oral sex..and I like it! However you must NEVER go down when you have an outbreak or if you feel one coming on! It is transferable, but it would seem that it is not that easy if careful, otherwise just about everyone would have HSV1 downstairs! HSV1 does not mutate into HSV2. They are different strains, tho incredibly similar. Now, with genital HSV2, stats indicate that as many as 1 in 5 men and 1 in 4 women (adult) are infected. Many women may not know they have it as if it is internal..as in, inside their vagina, they wont see it, let alone feel it as there are no touch receptors inside.