How do you get stds from oral sex

How do you get stds from oral sex because it doesnt go in the anal hole so no stds from that and vaginal I no you can get stds from that I just dont get pls answer

u get herpies on your lips if they had it

You can get oral herpes.
You can get gonorrhea (or chlamydia) of the throat.
You can get syphilis.
You can get HIV (if you have mouth sores).
You can get HPV.

In other words, everything that you can get from reg. (or anal) sex --- except pregnant.
So be careful.
And get the Gardasil vaccine that will help protect you from most of the serious strains of HPV.

I didnt think about doing it im to young I just want to know if you can get a std