Sex and Retesting After STI Treatment

Work out the treatment-based waiting point and a routine retesting reminder after chlamydia, gonorrhea or trichomoniasis. The date does not replace your clinic’s instructions.

Use your actual prescribed treatment. This calculator does not select a medicine.
For a course, enter the final prescribed dose date. For an injection or single dose, enter that date.

* This is your own treatment-based waiting point, not confirmation that sex is safe or that infection is cured. Complete all treatment, allow partner waiting periods, resolve symptoms and follow any longer clinician instruction.

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How to use

  1. Select the infection and, for chlamydia, the prescribed regimen you completed.
  2. Enter the completion date and answer the partner-treatment and symptom questions.
  3. Calculate the waiting point and repeat-testing reminder. Arrange any earlier test of cure with your clinician.

Retesting and a test of cure are different

Routine retesting looks for infection again after treatment, including reinfection. A test of cure checks whether treatment worked and is needed in particular circumstances. Ask about earlier follow-up if symptoms continue, doses were missed, you are pregnant or you had throat gonorrhea. Sex before partners finish treatment can lead to reinfection.

Methodology

CDC guidance specifies 7 days after single-dose chlamydia treatment, or completion of a 7-day course; gonorrhea requires a 7-day wait after treatment. Trichomoniasis requires completed treatment and resolved symptoms. Partner treatment and symptoms remain separate conditions. The routine reminder adds 3 calendar months to completion, clamping to the last day if necessary. This is an approximate scheduling reminder, separate from condition-specific tests of cure, and the trichomoniasis retest advice here is for sexually active women.

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