The risk of HIV through unprotected anal intercourse is seen to be extremely high, as much 18 times greater than vaginal intercourse. The reasons for the increased risk are well known and include such factors as:. Furthermore, the secretion of blood from damaged rectal tissues can increase the risk for the insertive "top" partner, providing the virus a route of transmission through the urethra and tissues that line the head of the penis particularly under the foreskin. In their review of 16 different high-quality studies, researchers at the Imperial College and the London School of Hygiene and Tropical Medicine concluded that the per-risk act of HIV through condomless anal sex was roughly around 1. The risk of transmission was further increased if the insertive partner was uncircumcised 0. By contrast, the per-partner risk —in which an HIV-positive person is in an exclusive relationship with an HIV-negative partner—painted a somewhat clearer picture for both the receptive and insertive partners.
How Do People Get AIDS?
AIDS and heterosexual anal intercourse.
I'll reprint a post from the archives that addresses your concerns. I also suggest you spend some time reading the information on this site related to how HIV is and is not transmitted. Stay well. My gay partner and I are both HIV- but just now we've gone wild and we performed unprotected sex. I am really worried now. Please help.
Anal Sex and HIV Risk
Heterosexual anal intercourse is rarely discussed in the scientific literature. Review of the literature suggests the silence is linked to ethnocentric discomfort about it among researchers and health care providers, coupled with the misconception that anal sex is a homosexual male practice, not heterosexual. Sexually transmitted disease STD data, especially where only the rectum is infected with gonorrhea or other STD agents, buttresses survey data. Considerably more heterosexuals engage in the act than do homosexual and bisexual men, not all of whom participate in anal coitus.
Anal sex is a common practice among men who have sex with men, heterosexual men and women, and transgender individuals and is a known risk factor for HIV infection and transmission. Therefore, it is important that education on HIV prevention includes accurate information on the fluids that can transmit HIV through this type of sex. If one of these fluids is excluded from prevention messaging, it could lead a client to underestimate their risk of HIV transmission.