Anal HPV Infections In Heterosexual Men
25% of heterosexual men who deny ever had any sexual intercourse with a man have an anal HPV infection.
In the men with anal HPV infection, 33% had a high-risk (oncogenic) HPV type.
The prevalence of anal HPV is statistically higher in gay men. The prevalence of anal HPV can be greater than 50% in men who have sex with men.
The risk factors in families associated with anal HPV infections include the number of female sexual partners and the frequency of sex with females during the proceeding month.
Risk factors for men getting an anal HPV infection include younger age, nonwhite race, Hispanic ethnicity, younger age of first sexual activity, lack of a steady sexual partner, single marital status, increased frequency of sex, higher lifetime number of female sexual partners and/or higher number of recent female sexual partners, lack of circumcision, lack of condom use, smoking, and presence of genital warts.
The incidence of anal cancer in the United States has increased almost threefold over the last three decades.
Between 1973 and 2004, the incidence of anal cancer in the United States increased 0.5- 1.3 per/100,000 people.
The prevalence of HPV infections in the penis and/or scrotum in heterosexual men who have anal HPV infections ranges from 9% to 70%.
HPV infection is the main cause of anal cancer.