Chlamydia is a sexually transmitted infection (STI) caused by the bacterium Chlamydia Trachomatis. In the UK, the number of new diagnoses has been steadily increasing each year since the mid-1990s, and it has now become the most commonly diagnosed STI.
Chlamydia is called the ‘silent’ disease because most people who get it do not experience any noticeable symptoms. Around 50% of men and 70-80% of women who get the Chlamydia infection will have no symptoms and many cases of Chlamydia remain undiagnosed.
For full details of Chlamydia click here to be taken to the NHS Choices website. If you are worried you may be at risk of having an STI or have any symptoms (as mentioned on the NHS Choices link to Chlamydia), you should visit your local sexual health or GUM clinic to have them checked out.
(Link checked as correct on 18/10/2013 by SA next update due 18/4/2014)