The International Union against Sexually Transmitted Infections (IUSTI) is a non-governmental organisation established in 1923,[1] and has charitable status in the UK.[2] It produces guidelines for Europe on the management of sexually transmitted infections and is organisation in consultative status with the WHO.[1] It also provides training and management in the field of STIs, publishes an STI textbook,[1] and publishes the journal Sexual Health. It also runs conferences, such as IUSTI Europe Congress (as of 2024, 36 annual conferences) and the IUSTI World Congress (as of 2024, 24)[3] and many other regional meetings.[4]