Doctors at the Great Western Hospital are urging young people to have their free annual Chlamydia test.

Chlamydia is the most common sexually transmitted infection in the country and occurs most frequently in men and women under 25.

In the past year, 683 people in Swindon under the age of 25 tested positive for the STI and, as most people have no symptoms, you won't know if you or your partner has it unless you have a test.

Chlamydia testing is quick and painless and can even be done yourself at home. Self test kits are available for free to all 15-24 year olds from Swindon Health Centre, in Carfax Street, or from the Sexual Health Clinics held at Swindon College on Tuesdays and Thursdays from 11.30am to 1.30pm and at New College on Mondays from 11.30am to 1.30pm.

Self tests can be ordered www.takethetestnow.org or by texting ‘Kit’ along with your name, address, gender and date of birth to 07825 761825. A self test kit will arrive in the post in discreet packaging.

You can also pick up a self test kit from a variety of pharmacies and vending machines around Swindon including Asda Walmart, Ashington Way, Lloyds Park South, St Johns Wroughton and Jephsons, Wroughton.