Can You Get HIV During Sex Without Ejaculation?

During penetrative vaginal or anal sex, with no condom being used, HIV transmission is possible even if there is no ejaculation. During sex with an HIV-positive man, transmission is much more likely to occur if he ejaculates, but him not doing so doesn't make transmission impossible.

Let's look at some specific scenarios:

Anal sex, HIV-positive person takes the bottom/receptive role -- HIV may be present in the lining of the rectum, making transmission to the top/insertive partner possible.

Anal sex, HIV-positive man takes top/insertive role -- HIV may be present in pre-cum (the fluid that arrives in smaller quantities some time before ejaculation), making transmission possible.

Vaginal sex, HIV-positive woman -- HIV may be present in vaginal fluids, making transmission to the male partner possible.

Vaginal sex, HIV-positive man -- HIV may be present in pre-cum (the fluid that arrives in smaller quantities some time before ejaculation), making transmission possible.

Condoms reduce these risks. Similarly, if the HIV-positive person is taking effective HIV treatment, levels of the virus will be so low that transmission is unlikely.

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