Condoms are highly effective and rarely fail if used correctly.
Condoms can help protect both partners from other diseases too.
Condoms are highly recommended for people who have vaginal, oral, or anal sex. It is best to use plenty of water-based lubricant for anal sex. Using condoms does not eliminate the risk that you will give HIV to your partner. But if you decide to have vaginal, anal, or oral sex, a condom will lower your partner's risk of infection. Avoid risky sexual activity until you've discussed your HIV infection with your partner.