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}}</ref> The medical literature contains numerous additional case report reports of cancer in [[circumcised]] men.

Advocates of [[circumcision]] may yet point to the aforementioned studies and highlight that the incidence of penile cancer was still lower in the [[circumcised]] groups of men studied, than it was in the [[intact]] group, and that thus "a lowered risk of penile cancer is observed in circumcised men." It is important to remember when looking at the studies performed in the 1950s, that the octogenarians afflicted with penile cancer were born in the 1870s, when the circumcision rate in the United States was close to zero; the majority of men in that generation who were afflicted with cancer would be [[intact]]. The increased number of cases of penile cancer found in more recent studies is reflective of the steadily increasing circumcision rates in this country (37% of Maden's cases were [[circumcised]]). Using Maden's numbers and properly adjusting his control population to match the case population for age, there was no difference in risk of developing penile cancer between men who were circumcised and those who were not. HPV (the cause of genital warts) has been found in most cases of penile cancer. Genital warts are now more common in [[circumcised]] men <ref name="cook1994">{{REFjournal

}}</ref> Finally, circumcision does not explain why Japan and [[Denmark]] have lower penile cancer rates than the [[United States]] when circumcision, especially infant [[circumcision]], is not common in those two countries.<ref name="kochen1980">{{REFjournal