Chlamydia is one of the most common sexually transmitted infections (STIs) in the UK – especially among people under 25. But despite how common it is, many people don’t know they have it. That’s why regular testing and safer sex are so important.

What is chlamydia?

Chlamydia is a bacterial infection that can be passed on through unprotected sex or genital contact. It often doesn’t show any symptoms – up to 70% of women and 50% of men may not notice anything at all – but it can still cause serious health problems if left untreated.

How can you catch chlamydia?

Chlamydia can be passed on through:

• Vaginal, anal or oral sex without a condom
• Sharing sex toys that haven’t been washed or covered with a new condom
• Genital contact (even without penetration)
• From a pregnant person to their baby during childbirth

What parts of the body can it affect?

Chlamydia can affect several areas, including:

• Genitals – it can cause pain when peeing, unusual discharge, or pain during sex
• Rectum – leading to pain, discharge or bleeding
• Throat – though usually symptomless, it can still carry the infection
• Eyes – if infected fluids come into contact with them
• Reproductive organs – untreated chlamydia can lead to complications like pelvic inflammatory disease (PID) or infertility in all genders

How is chlamydia treated?

The good news? Chlamydia is easily treated with a short course of antibiotics. It’s important to:

• Avoid sex (including oral) until treatment is complete
• Let recent sexual partners know so they can get tested and treated too
• Re-test 3 months after treatment if you’re under 25 or at risk of reinfection

How can you stay safe?

Prevention is better than cure – here’s how to protect yourself and others:

• Use condoms or internal condoms during sex. Order free condoms via the ec-card.
• Get tested regularly, especially if you have new or multiple partners. Order a free STI test kit here.
• Don’t share sex toys – or use a new condom and clean them between uses
• Talk openly with partners about sexual health and testing

Chlamydia might be common, but staying informed and getting tested helps keep you – and your partners – safe and healthy. Stay in control of your sexual health with Essex Sexual Health Service.