[POWERSBOOTHEFAN]

Cancer is a possibility because of the HPV virus. This is why sexually-active women are supposed to get a Pap smear to make sure they are cancer-free,since HPV can cause uterine,cervical and ovarian cancers.

[Lizavetta]

Yes, but that would apply to any sexual contact, not specifically oral sex.

And as I said, this only applies if your partner is infected.