HIV test

An HIV test detects the presence of the virus or the body's response to it, such as antibodies or genetic material. Common methods include blood tests, oral swabs, or urine tests, usually performed in healthcare settings or with at-home kits. Results can identify if someone has HIV and help start treatment early, which improves health and reduces transmission risk. The window period—the time between infection and test detectability—varies but is typically a few weeks. Regular testing is important for anyone at risk, and healthcare providers can advise on the best test and timing.