Sexually transmitted infections (STI)

Chlamydia is a common sexually transmitted infection (STI) that may cause no symptoms. Learn about prevention, testing, contact tracing and treatment.

Genital herpes spreads by skin-to-skin contact, like kissing or foreplay. Learn how to prevent the spread of the virus and what to do if you catch it.

Genital warts are a sexually transmitted infection that causes bumps on the genital areas. Learn about their treatment and prevention.

Gonorrhoea, also known as 'the clap,' is a bacterial STI. Learn about symptoms, diagnosis, treatment, and prevention in this concise guide.

People with HIV are unlikely to transmit the virus or develop AIDS if they get effective treatment. Learn about HIV prevention, testing and treatment.

Pubic lice (crabs) are tiny insects spread mainly by sexual contact. Find out the symptoms, the treatment and how to stop pubic lice spreading.

Syphilis is a sexually transmitted infection (STI) that can cause serious health problems if left untreated. Find out more about syphilis here.

Trichomoniasis is an infection usually spread via unprotected sex, but occasionally via sharing wet towels. Learn about treatment and prevention.