Condoms and lube are the most effective way to protect yourself from HIV and other STIs during anal or vaginal sex. This is because when used consistently and correctly during sex, latex acts as a barrier that HIV and other STIs can’t pass through.
Pre-exposure prophylaxis or PrEP refers to the use of HIV medication by people who are HIV-negative in order to reduce their risk of HIV infection.
If you are HIV negative and you know or even think you may have been exposed to HIV during sex with a person you know is living with HIV (for example, a condom broke or you didn’t use one), you should visit the emergency department of your local hospital as soon as possible.
People living with HIV who are on anti-retroviral treatment and maintain an undetectable viral load for at least six months do not sexually transmit HIV.
In theory, having the same HIV status as your sexual partner (negative with negative, or positive with positive) shouldn’t involve a risk of HIV transmission. Some people use this approach with casual hook-ups and some people use it in long term relationships. However, it doesn’t always work.