How do you "catch" the types of cervical cancer? is it always by sex with an hpv carrier?

Sexually transmitted: It is highly unlikely to "catch" the high risk human papilloma virus that increases the risk for cervical dysplasia or cancer by any means other that close sexual contact. Unfortunately, it can be spread through vaginal, oral and anal sex. Be careful, always use a condom, and get vaccinated against high risk hpv if you qualify. Current approved ages are 9-26 years old in both males and females.

Mostly: Safe sex can reduce your risk if he has hpv.

Sex: Unfortunately a condom is not as benificial with hpv exposure as it might for other std's. Infectious particles are often located outside the area covered by a condom & spread in a stealt fashion, so your only realistic ways to avoid hvp is to abstain or get the vaccine.