
What is a 4th Generation HIV Test and How Does It Look for the p24 Antigen?
Concerned about HIV exposure? A 4th generation HIV test detects both antibodies and the p24 antigen early. Learn how it works and when to test.
Expert, evidence-based articles on STIs, testing, prevention, and sexual wellbeing. Written by UK sexual health experts.

Concerned about HIV exposure? A 4th generation HIV test detects both antibodies and the p24 antigen early. Learn how it works and when to test.

Wondering why a venous blood draw is more accurate for HIV testing than a finger-prick? Learn about HIV test types, accuracy, and when to consider testing.

Worried about drug-resistant gonorrhoea? Learn whether a standard gonorrhoea test can detect new resistant strains and when testing may be advisable.

Wondering if a body rash could be linked to gonorrhoea? Symptoms have many causes. Learn when STI testing may help provide reassurance and clarity.

Got a lab result saying Chlamydia DNA Not Detected? Understand what this means, when retesting may help, and how STI testing works in the UK.

A negative chlamydia test but milky discharge can have many non-STI causes. Learn what symptoms mean, when to test, and where to get confidential STI testing.

Learn why first-catch urine is the recommended sample type for chlamydia and gonorrhoea tests in men, and how sample type can affect result reliability.

Lower back pain and pelvic discomfort can have many causes. Learn when symptoms may relate to a rectal infection and when confidential STI testing may help.

Worried about chlamydia after partial condom use? Understand your risk, possible causes, and when confidential STI testing may provide reassurance.
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