You are always telling me how much you love a quiz so here, have an STI quiz. You are very welcome.
For more information about STIs scroll down. Also down there are the sources I used for the quiz, so you know I’m not just making this up.
It’s a fiendishly difficult quiz but also pretty chilled out and quite real life. Let me know how you got on in the comments below.
Here’s the STI quiz, which opens in a new window. Come back here for the info.
If you would like to learn some more about STIs you can check out my guide to sex infections which, like this quiz, doesn’t have any pictures of infected genitals or other scary pictures you might have seen in Sex Ed classes at school (find out why I don’t include those pictures by taking the quiz).
You can also find out more detail about chlamydia, gonorrhoea, herpes, HPV, and HIV
Also remember that using condoms for penetrative sex is the best way of avoiding STIs, find out how to use condoms and look out for all the other posts I link to on there about how to make using condoms easier and more fun. Want to get a check up? Find out more about free and confidential sexual health services near you. Want to have sex but not use condoms? Here’s how to have amazing sex without having ‘sex’.
Sources:
Data Tables for STIs in England
Monogamy Agreements and Disagreements
© Justin Hancock, 2026 Find out more about me and BISH here.
BISH is run by me, Justin Hancock. I’ve been a trained sex and relationships educator since 1999. I’m a member of the World Association for Sexual Health. As well as BISH I also have resources, a podcast, and a coaching service for over 18s, as well as some of the best RSE teaching resources around. Find out out about my other work at justinhancock.co.uk. My work has featured (positively) in the media, like the BBC, Financial Times, The Economist, The Guardian, Sky One, and Novara Media.
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