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"Sexual Behavior and Increased Anal Cancer," published in Immunology and Cell Biology, authors Richard J. Ablin and Rachel Stein-Werblowsky, report that "anal intercourse is one of the primary factors in the development of cancer." According to the prestigious New England Journal of Medicine, "Our study lends strong support to the hypothesis that homosexual behaviour in men increases the risk of anal cancer." In addition, the International Journal of Cancer finds that, "Being single and having practised anal intercourse appears to be associated with anal cancer and case reports have suggested a recent increase in the number of cases of anal cancer." The medical references are legion.

I'll bet dollars to doughnuts that these cites are taken way out of context, and that what is really being discussed is that anal intercourse is linked also to higher occurences of anal HPV infections (genital warts, also linked to cervical cancer). It has nothing to do with the totally bogus idea of sperm cells attempting to fertilize any human tissue they come across. (If that was true, every boy over 13 would have pregnant palms...)

By contrast, the rectum is designed to absorb up to the last possible useful nutrient that we have eaten.

I can't resist pointing out that this has given me a whole new idea about consuming some of the less-than-palatable cafeteria food I've encountered...

I searched NEJM and found an article in 1997 that suggested a possible link between HPV and anal cancer. Interestingly, 15% of the men with cancer were homosexual, while none of the control sample were.

By contrast, the rectum is designed to absorb up to the last possible useful nutrient that we have eaten.

Another problem with this article--the small intestine absorbs nutrients, the large intestine's main absorptive role is to absorb water. *sigh*