Having vaginal or anal sex without a condom (called unprotected sex) can place you at risk of getting an STI. You can also get some STIs from unprotected oral sex, and from skin-to-skin contact. Some activities put you at higher risk.
Riskier activities include having unprotected sex:
- With casual partners (the more partners, the greater the risk).
- With a partner who has had unprotected sex with casual partners.
- When travelling outside Australia or with a partner who has had unprotected sex outside Australia.
