While condoms are effective, HPV and HSV can be spread by contact with the area around the genitals not protected by the condom. Sexual contact includes oral, anal, and vaginal sex, as well as genital skin-to-skin contact. STDs are spread through sexual contact (without a condom) with someone who has an STD.Men who are HIV-positive are even more likely than those who do not have HIV to get anal cancer. Gay, bisexual, and other men who have sex with men are 17 times more likely to get anal cancer than heterosexual men. Some types of HPV can cause genital and anal warts and some can lead to the development of anal and oral cancers. HPV (Human papillomavirus), the most common STD in the United States, is also a concern for gay, bisexual, and other men who have sex with men. Gay, bisexual, and other men who have sex with men often get other STDs, including chlamydia and gonorrhea infections. In 2014, gay, bisexual, and other men who have sex with men accounted for 83% of primary and secondary syphilis cases where sex of sex partner was known in the United States. Sexually Transmitted Diseases (STDs) have been rising among gay and bisexual men, with increases in syphilis being seen across the country.