Sexually Transmitted Infections and HIV

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More about STIs on NHS Choices

Sexually transmitted infections (sometimes called STIs) are infections that can be passed from one person to another person during sexual activity. Anyone who is sexually active can catch an STI, regardless of their age, gender or sexuality. Having sex without using a condom, or using a condom incorrectly puts you at risk of catching an STI.

At best, STIs can cause discomfort, embarrassment and irritation, they can, however, have longer-term effects on our health including infertility (unable to have children). Some STIs that can cause long-term damage to our bodies can sometimes have no symptoms at all.


Chlamydia is the most common STI in the UK affecting both men and women.


HIV is here as much as it ever was and the number of new infections continues to rise every year.

I think I might have an STI

So, how would you know if you had an STI?

Where can I get tested/treated?

If you think that you may have an infection, then the best way to get the right diagnosis and treatment is to go to your local sexual health clinic

How can I avoid STIs?

You can help to avoid getting many STIs by having safer sex.