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Chlamydia (kla-mid-ee-a) is the most commonly diagnosed sexually transmitted infection (STI) in the UK, affecting both men and women. You don’t need to have had lots of sexual partners to be at risk.
On this site you will be able to learn more about chlamydia, the National Chlamydia Screening Programme (NCSP) and be able to access local services for chlamydia screening.
The important things to know about chlamydia are:
For most people chlamydia has no symptoms, so you probably won't know if you or your partner(s) have it without having a test.
Chlamydia is the most commonly diagnosed STI in England and rates are increasing.
Untreated chlamydia can have serious long term health implications and may lead to infertility (being unable to have children).
If you are sexually active and under 25 years old, you should be tested for chlamydia annually or when you change your sexual partner.
If you are under 25 years old you can get a free and confidential chlamydia test as part of the NCSP.
Chlamydia is easily tested for and easy to treat – you don’t need to be examined.
Any form of unprotected sex (without a condom) can put you at risk of catching chlamydia, including oral sex.
The test for chlamydia is simple – just one quick and painless test that you do yourself. You do NOT need to be examined!
To find your local chlamydia screening services enter your post code or select your region on the map.