What are STIs and BBVs?
STIs and BBVs are infections that can affect everyone. Some are cured by themselves, some need medicine to be cured and some will stay with a person for the rest of their life.
STIs are passed on through unprotected vaginal, anal and oral sex with someone who has an STI.
STIs are usually passed on through:
- Semen
- Anal fluids
- Vaginal fluids
- Genital skin contact
STIs include:
- Chlamydia
- Gonorrhoea
- Syphilis
- Genital warts
- Genital herpes
BBVs are viruses that are passed on through blood-to-blood contact, including sharing or reusing needles and other injecting, tattooing and piercing equipment.
They include:
- HIV
- Hepatitis B
- Hepatitis C
HIV and hepatitis B can also be passed on through unprotected sex.
Related resources
Sexually transmitted infections and blood-borne viruses brochure
Downloads, Medical

Language Guide: Sexual health, STIs and BBVs for trans, gender diverse and non-binary people
Downloads, Language, Professionals

Sexual health testing video
Medical, Video

Letter template for health appointments
Downloads, Medical
