Chlamydia is caused by a bacterium called Chlamydia trachomatis. The bacteria are found in the semen of men and vaginal fluids of women who have the infection. Chlamydia is easily passed from one person to another through unprotected sex (not using a condom).
Genital chlamydia is the most common bacterial sexually transmitted infection (STI) in the UK, being most common in men and women under 25.
Chlamydia is known as the ‘silent’ infection due to its lack of noticeable symptoms. If left untreated it can spread to other parts of the body and cause pain, especially in the abdomen, and may lead to infertility.
Most people have no symptoms, so most people will not know they have it. However, 25 per cent of women and 50 per cent of men do develop symptoms.
Genital chlamydia is the most common bacterial sexually transmitted infection (STI) in the UK, being most common in men and women under 25.
Chlamydia is known as the ‘silent’ infection due to its lack of noticeable symptoms. If left untreated it can spread to other parts of the body and cause pain, especially in the abdomen, and may lead to infertility.
Most people have no symptoms, so most people will not know they have it. However, 25 per cent of women and 50 per cent of men do develop symptoms.
Chlamydia is the most commonly diagnosed sexually transmitted infection (STI) in the UK; affecting both men and women. Most people who have it will have no symptoms, without a test you will probably not know anything is wrong. If you or your sexual partner are left untreated it can cause infertility (not being able to have children) and long term pelvic pain. If you are sexually active and under 25 you should be tested for chlamydia annually.
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.
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.

