For cervical cancers screenings, you got the pap smears and more recently used for HPV testing, to test whether a person has high-risk HPV virus. I presume this is what the question is asking.
So, HPV screening is supposed to be superior to pap smear screenings for women above 30 years old. So before 30 years old, you should still do a pap smear.
HPV screening is testing whether a person has the virus or not, whether HPV 16, HPV 18 or the other types. So, do we need to do this testing before the vaccine? Actually, it's not very necessary, you can still go for the vaccine if you are within the age group, so in Singapore, I think the age group is 26 or younger, for those who opt for the vaccination.
