Human Sexuality and STI's

Can cancer be spread through sexual intercourse?

STIs/STDs are transmitted through vaginal, oral, and/or anal contact. Some STIs/STDs are transmitted through fluids such as vaginal secretions and semen, while others are transmitted with skin-to-skin contact. The way you prevent getting STI's and STD's is using condoms and having "Safe" sex. Were would cancer fall under and how can it be transmitted? Can guys and girls do it? Teens think that they can't get any STI's and STD's and that no matter what they do it's impossible.