depending on where you go, the process can vary. they may ask you for a urine sample, take a blood sample and a swab culture of any thing unusual going on down stairs. if your female they may also want to do a pap smear.
To get a urine test, some blood tests and also they might want to look at you in some private areas, meaby take some saples from there too.
If you mean what should you expect the doctors to do, then you should expect; to pee in a cup, blood tests, and a physical examination.
Thanks everyone! I'm just a little scared, never done anything, but it doesn't hurt to make sure.