STI Testing After Unprotected Sex: When to Go

This means there are two important questions:

“Should I be tested now?”

and

“Do I need another test later?”

If the exposure was recent, a healthcare provider can help determine which tests make sense now and whether follow-up testing should be considered.

Why Does STI Testing Timing Matter?

STI tests look for evidence of an infection. Depending on the infection and test, there may be a period after exposure when the infection is present but the test cannot reliably detect it.

This is sometimes called a window period.

Testing too early can therefore produce a negative result that does not necessarily rule out a recent infection.

That does not mean you should always wait to seek care. If you have symptoms, know that a partner has an STI, or have a specific concern about a recent exposure, contact a healthcare professional promptly.

Your provider can determine whether testing now, testing later, or both may be appropriate.

Can You Get an STI Test the Day After Unprotected Sex?