When should I take an STI test after a possible exposure?

There is no single window period for every infection. Some tests can be useful within days, while others need repeat testing weeks later. A clinician can choose tests based on the type of contact, symptoms, condom use, vaccination and timing. Seek care immediately for ulcers, discharge, pelvic or testicular pain, fever, rash or possible HIV exposure rather than waiting for a routine date. Health note: Condoms reduce risk but do not eliminate every STI risk. Testing windows differ, and PEP is time-sensitive after a possible HIV exposure. Contact a qualified clinic or hospital promptly for personalised medical advice.