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Worried about sexually transmitted infections?

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This page summarises publicly available NHS information for educational purposes only. It is not medical advice or a diagnosis. Always consult a qualified healthcare professional.

What is sexually transmitted infections?

Sexually transmitted infections (STIs) are infections passed through sexual contact. Common ones include chlamydia, gonorrhoea, genital herpes, genital warts, and HIV. Many STIs have no symptoms, which is why regular testing matters — most are easily treated if caught early. Free, confidential testing is available at sexual health clinics across the UK.

When NHS resources suggest seeing a GP

  • You notice unusual discharge from the vagina or penis.
  • You have pain or burning when you pee.
  • You have sores, blisters, lumps, or rashes around the genitals or anus.
  • You have pain during sex or unexpected bleeding.
  • You've had unprotected sex with a new partner.
  • A sexual partner has told you they have an STI.
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Self-care information from NHS

  • Use condoms correctly to reduce the risk of most STIs.
  • Get tested regularly if you have new or multiple sexual partners.
  • Book a free, confidential test at a sexual health clinic (GUM clinic) — no GP referral needed.
  • Tell sexual partners if you're diagnosed so they can get tested and treated.
  • Avoid sex until treatment is complete and a clinician confirms the infection has cleared.
  • Consider PrEP (HIV prevention medication) if you're at higher risk of HIV — speak to a sexual health clinic.

Common questions

How do I know if I have an STI?

Many STIs have no symptoms, so testing is the only reliable way to know. Common warning signs include unusual discharge, pain when peeing, sores, or itching. Free testing is available at sexual health clinics, often without an appointment.

Where can I get tested for STIs in the UK?

Sexual health (GUM) clinics offer free, confidential testing — no GP referral needed. You can also get free home testing kits from many local authorities. GPs can test too, but clinics are usually faster and more anonymous.

Can STIs be cured?

Most bacterial STIs (chlamydia, gonorrhoea, syphilis) are cured with antibiotics. Viral STIs like herpes and HIV can be managed but not cured — modern treatments make HIV a manageable long-term condition.

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This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your individual situation. NorMed organises publicly available NHS information and is not affiliated with the NHS.