At-home STI testing
At-home testing splits into two very different models: mail-in kits, where you post a sample to a laboratory, and instant tests, where the test runs where you are. Diagnik only sells instant tests.
Diagnik Health Library · Updated

What instant testing means in practice
- You collect the sample — gum swab, fingerstick or vaginal swab.
- The test runs in 15 to 40 minutes depending on the test.
- You read your own result from the instruction card.
- No sample leaves your home and no result is transmitted anywhere.
What it is genuinely good at
- Answering a specific worry quickly, without an appointment.
- Removing the conversation barrier for people testing for the first time.
- Privacy — plain packaging, guest checkout, no stored results.
Its honest limits
- Screening only. Reactive results need clinical confirmation.
- Timing-sensitive: testing inside a window period can miss an infection.
- Site- and anatomy-specific: no throat or rectal testing, and no instant chlamydia or gonorrhea option for people with a penis.
Tests mentioned in this guide

OraQuick In-Home HIV Test
An HIV answer at home, in 20 to 40 minutes, with no blood.

First To Know Syphilis Test Kit
A single drop of blood, a syphilis answer in 15 minutes.

Visby Women's Sexual Health Test
Three common infections from one self-collected swab, in about 30 minutes.
Frequently asked questions
- Are at-home STI tests accurate?
- FDA-authorized over-the-counter tests are reliable screening tools when used exactly as instructed and outside the window period. Reactive results are confirmed clinically.
- Do I have to post anything?
- No. Every test Diagnik sells is read at home; nothing is mailed to a laboratory.
Not sure which test you need?
Three questions, about a minute, and one clear recommendation. No account needed.
Find my testKeep reading
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STI testing
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When to test after exposure
Waiting feels wrong, but the window period decides whether a result means anything.
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.
