"Additionally, circumcision has been found to lowers one's risk for contracting HIV and HPV, the human papilloma virus, which can cause genital warts and has been linked to some cancers.
Another study published in the Journal of the American Medical Association reviewed more than 500 studies, finding that circumcision reduces risk for HIV transmission in heterosexual men by 60 percent, genital herpes by 30 percent, and cancer-causing strains of HPV by 35 percent.
Some research suggests that circumcision in infancy actually lowers the risk for prostate cancer in adulthood. A study of 3,400 men found those who were circumcised before their first sexual intercourse were 15 percent less likely to develop prostate cancer than men who were not."
