Sexually transmitted infections (STIs)

Check your symptoms and find treatment for the most common sexually transmitted infections (STIs).

Chlamydia

Chlamydia

Chlamydia is one of the most common sexually transmitted infections (STIs). You might not know you are infected because it is often symptom-free but left untreated it can cause serious problems in... Read more about Chlamydia

genital warts under microscope

Genital warts and HPV

Information about the human papilloma virus (HPV) and genital warts - their symptoms, how they’re passed on and how they’re treated. Read more about Genital warts and HPV

gonorrhoea cells

Gonorrhoea

Sexual health information about gonorrhoea and super gonorrhoea, the symptoms of gonorrhoea, how it’s passed on and how it’s treated. Read more about Gonorrhoea

hepatitis virus

Hepatitis

Sexual health information about hepatitis (inflammation of the liver), looking at the forms of virus that cause it and how it affects people living with HIV. Read more about Hepatitis

herpes micro

Herpes

Herpes is caused by the herpes simplex virus (HSV). It's spread through skin-to-skin contact – for example during vaginal, oral or anal sex. The herpes simplex virus remains in the body for life,... Read more about Herpes

Microscopic image of LGV

LGV (lymphogranuloma venereum)

Sexual health information about the symptoms of LGV, how it’s passed on and how to avoid infection. Read more about LGV (lymphogranuloma venereum)

Mycoplasma

Mycoplasma genitalium (Mgen)

Sexual health information about Mycoplasma genitalium – how it's passed on and how to avoid infection. Read more about Mycoplasma genitalium (Mgen)

Microscopic image of molluscum

Molluscum

Sexual health information about molluscum symptoms, how it's passed on, how long the infection lasts and how it's is treated. Read more about Molluscum

NSU

NSU

Sexual health information for men about non-specific urethritis, NSU symptoms, how it’s passed on and how it’s treated. Read more about NSU

pubic lice

Pubic lice

Sexual health information about pubic lice (also known as crabs), how they are passed on, pubic lice symptoms and treatment. Read more about Pubic lice

Microscopic image of shigella

Shigella

Shigella is a type of bacteria that causes severe stomach upset. Infection can be treated with a course of antibiotics. It's passed on through infected faeces (poo), either sexually or through... Read more about Shigella

Microscopic image of syphilis

Syphilis

Sexual health information about syphilis symptoms, the three stages of syphilis, how it’s passed on and how it’s treated. Read more about Syphilis