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Sexual Health

HIV

HIV is a virus that affects the immune system. With today’s treatment, people with HIV can live long, healthy lives — and cannot pass it on when their treatment keeps the virus undetectable. Testing is free and confidential.

At a glance

  • With effective treatment, people with HIV live long, healthy lives.
  • Someone on effective treatment with an undetectable level cannot pass HIV on.
  • HIV testing is free, confidential and quick.
On this page (5 sections)

Overview

HIV is a virus that damages the cells in the immune system. With modern treatment, most people with HIV live long and healthy lives, and effective treatment that keeps the virus at an undetectable level means it cannot be passed on to others [1].

Symptoms

Some people get flu-like symptoms — such as a sore throat, fever and rash — within a few weeks of getting HIV, but many people have no symptoms for years and may not know they have it. This is why testing is important [1].

How it is and is not passed on

HIV is mainly passed on through sex without a condom and by sharing needles. It is not passed on through everyday contact such as kissing, hugging, sharing cutlery or using the same toilet [1].

Testing

HIV testing is free, confidential and available from sexual health clinics, GPs, some pharmacies and through home testing kits. Knowing your status means you can get treatment early if needed [1].

Treatment and prevention

HIV is treated with daily tablets (antiretrovirals) that keep the virus under control. Prevention options include condoms and a medicine called PrEP, which is available free through sexual health clinics for people at higher risk [1].

Sources

  1. NHS. HIV and AIDS (opens in new tab) Last reviewed 9 July 2025. Accessed 12 August 2026.

About this page

Written by
Consumer Health editorial team
Medical review
Pending — this page has not yet been reviewed by a named clinician. Read our medical review policy.
Last updated
August 2026
Next review due
August 2027

Important: This information is for general guidance only and does not replace professional medical advice. It is not intended to diagnose or treat any condition. Always speak to a qualified healthcare professional — such as your GP or pharmacist — for advice about your individual circumstances, and do not start, stop or change any prescribed treatment based only on this page. If you think you are having a medical emergency, call 999. Consumer Health is an independent health-information resource and is not the NHS or a government body.

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