Most tests can detect the infection within 5 days to 2 weeks of exposure. If a test is negative shortly after exposure, a doctor may recommend retesting 2 weeks later, particularly if a person has symptoms.

How long does it take for STDs to show up on tests?

It can take 3 months for HIV to show up on a test, but it only takes a matter of days to a few weeks for STDs like gonorrhea, chlamydia, and syphilis to show up.