A test was done to assess the prevalence of circumcision across
various social groups and examine the health and sexual outcomes of
circumcision.
Results: We find no significant differences between circumcised and
uncircumcised men in their likelihood of contracting sexually
transmitted diseases. However uncircumcised men appear slightly
more likely to to experience sexual dysfunctions, especially later
in life. Finally, we find that circumcised men engage in a more
elaborated set of sexual practices. This pattern differs across
ethnic groups, suggesting the influence of social factors.
Circumcised men had different sexual practices from genitally
altered men. Circumcised men were more likely to masturbate, to
engage in heterosexual anal and oral sex, and to engage in
homosexual anal sex.