According to the Mayo Clinic, risk factors for anal cancer include: (1) being over 50 years in age, (2) having many sexual partners over their lifetime (see: [[Homosexuality and promiscuity|Homosexual men and promiscuity]]) and (3) "Men and women who engage in anal sex have an increased risk of anal cancer."<ref>{{cite web|url=http://www.mayoclinic.org/diseases-conditions/anal-cancer/basics/risk-factors/con-20024923|title=Anal cancer: risk factors|date=July 26, 2013|work=Mayo Clinic|accessdate=Feb. 29, 2016}}</ref> | According to the Mayo Clinic, risk factors for anal cancer include: (1) being over 50 years in age, (2) having many sexual partners over their lifetime (see: [[Homosexuality and promiscuity|Homosexual men and promiscuity]]) and (3) "Men and women who engage in anal sex have an increased risk of anal cancer."<ref>{{cite web|url=http://www.mayoclinic.org/diseases-conditions/anal-cancer/basics/risk-factors/con-20024923|title=Anal cancer: risk factors|date=July 26, 2013|work=Mayo Clinic|accessdate=Feb. 29, 2016}}</ref> |