Risks of anal sex, other than STIs? Are there any risks involved with anal sex that are not causes of anal sex with oral or vaginal?
Friction, the enemy of pleasure and safety during sex, is produced during anal sex, much as it is during vaginal sex. However, friction may be more of an issue during anal sex because the lining of the anus is more delicate and produces less natural lubricant than the vagina. Anal sex may make a person more susceptible to bacterial infection around the anus and rectum. This is because the lining of the rectum is not as heavy as the lining of the vagina, so it is more susceptible to tears. If the anus or rectum does get torn, it does not heal as quickly. Because feces that pass through the rectum contain bacteria, any tear in the lining is at risk of getting infected. This is called a fistula and it is a significant medical issue because it allows feces to pass outside of the bowel, and requires major surgery to repair.