Evidence shows that sex between men is significantly underreported in surveys due to social desirability bias.
While the nerve endings in the anus can provide pleasurable feelings, an orgasm may be achieved through receptive anal penetration by indirect stimulation of the prostate.
[10] A study sampling single people in the U.S. indicated that orgasm rates are similar among men across sexual orientations.
[12] Reports pertaining to the prevalence of anal sex among MSM have varied over time, with some percentages higher than others.
[7][13][14][15] A large percentage of gay and bisexual men self-report lifetime participation in anal sex.
Wellings et al. reported that "the equation of 'homosexual' with 'anal' sex among men is common among lay and health professionals alike," whereas an online survey of 18,000 MSM in Europe "showed that oral sex was most commonly practised, followed by mutual masturbation, with anal intercourse in third place.
"[4] A 2011 survey by The Journal of Sexual Medicine found similar results for U.S. gay and bisexual men.
In its December 2020 report, International Lesbian, Gay, Bisexual, Trans and Intersex Association (ILGA) found that certain sexual acts between men are criminalized in 67 of 193 UN member states and one non-independent jurisdiction, the Cook Islands, while two UN member states, Iraq and Egypt, criminalize it de facto but not in legislation.
[28] In 2020, ILGA named Iran and Saudi Arabia as the only countries in which executions for same-sex activity have reportedly taken place.