Another recent study suggests a correlation between oral sex and throat cancer. It is believed that this is due to the transmission of HPV because this virus has been implicated in the majority of cervical cancers. The study concludes that people who had one to five oral sex partners in their lifetime had approximately a doubled risk of throat cancer compared with those who never engaged in this activity. Those with more than five oral-sex partners had a 250% increased risk.[QUOTE]
Gastrointestinal infections and parasites may be passed on during oral contact with the anus.
The hepatitis A virus is also contained in human feces, and may be passed on during anal-oral sex.
Hepatitis B is contained in sexual fluids and blood and may be transmitted during oral sex in a similar way to HIV (see below).
Hepatitis C is generally only contained in blood, and will only be transmitted if there is blood present during oral sex.
as well as e coli