At-home syphilis testing

The First To Know Syphilis Test Kit is designed for the situation people describe most often: a sore or rash appeared, and waiting a week for an appointment feels unbearable.

Diagnik Health Library · Updated

At-home syphilis testing

Step by step

  • Wash your hands and clean a fingertip with the alcohol pad.
  • Use the sterile lancet included in the kit.
  • Apply one drop of blood to the test device as the card shows.
  • Read the result after about 15 minutes.

After the result

  • Reactive: contact a clinician for confirmation and staging. Syphilis is curable.
  • Non-reactive: retest if the exposure was very recent, and see a clinician if symptoms persist.
  • Invalid: no control line means no result — use a new test.

Limitations to keep in mind

  • A screening result, not a diagnosis or a stage.
  • Cannot distinguish current from treated past infection.
  • Covers syphilis only.

Tests mentioned in this guide

Frequently asked questions

Is the fingerstick painful?
It is a brief pinprick using the sterile lancet included in the kit, similar to a blood-sugar check.
Do I send the sample anywhere?
No. The test runs at home and you read the result yourself in about 15 minutes.

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Related testing pages

Sources

Educational information only, not a medical diagnosis or treatment advice. Screening results always need confirmation by a clinician.

This guide is general health information about screening tests. It is not a diagnosis and does not replace care from a clinician. See our medical disclaimer.