When is an HIV test recommended for HIV infection?

HIV tests look for signs of infection in a sample, usually blood or another body fluid depending on the test used. No single test is suitable for every timing situation. A test taken soon after exposure may need repeating because the body may not yet produce a detectable signal. A clinician can explain the test window, the type of sample, and how results will be given confidentially.

Contact a sexual health service or clinician promptly and describe when and how the exposure occurred. If it was recent, ask urgently whether post-exposure medication could be suitable; timing matters. Until you receive advice, use condoms or avoid sex and do not share injecting equipment. Testing for other sexually transmitted infections may also be appropriate.

Seek urgent medical advice after a recent exposure, especially if there was unprotected vaginal or anal sex, a condom failure, or shared injecting equipment. Also arrange care for fever, rash, sore throat, swollen glands, or an illness after a possible exposure, while remembering that these symptoms have many possible causes. Do not wait for symptoms before testing.

Ask: Which HIV test suits my situation? When will it be reliable? Do I need a repeat test? Could post-exposure medication help? How will confidentiality and results be handled?