- If you have never had a test but have previously had sex
- Before having sex with a new partner
- If you and your partner are thinking about not using condoms
- If a sexual partner has cheated on you
- If you have multiple sexual partners
- If you have symptoms which may be related to an STI
- If your condom splits during sex (vaginal, oral or anal)
- If you shared sex toys with someone
- If you want to start a family
- If an ex-partner has contacted you to say they have an STI
- If a sexual health service has contacted you to recommend you get tested
- If you are a drug user and have shared needles with someone