8-Panel vs. 10-Panel STD Test: What's the Difference?

Quick answer: The difference comes down to how many infections are screened. An 8-panel STD test typically covers chlamydia, gonorrhea, syphilis, HIV, hepatitis B and C, and herpes, while a 10-panel adds hepatitis A and extra markers (like splitting HIV-1/HIV-2) for the most complete picture. If you want the widest coverage, the 10-panel is the safer choice.

8-Panel vs. 10-Panel STD Test: What's the Difference?

Patients ask me about the numbers all the time, usually worried a smaller panel means they're missing something. Both are comprehensive screens from a urine sample and a blood draw — the difference is the number of markers, and exactly which infections each includes can vary between labs, so I always tell people to check the specific list. In general:

The core infections are the same. The 10-panel simply casts a wider net — usually adding hepatitis A and splitting HIV into separate markers to reach ten.

Which Infections Really Matter for You?

Here's the honest version I give patients: more markers isn't automatically better. What matters is covering your actual risk. Our guide to what's included in a full panel explains how each infection is tested and who needs it. As a rule of thumb, an 8-panel is a solid comprehensive screen for most people, and a 10-panel makes sense if you want the most complete coverage or you've had a higher-risk exposure.

Do More Markers Cost More?

Usually a little — a 10-panel often costs slightly more because it runs additional tests, though the gap is typically small. See our STD panel cost guide for current pricing. For many people the extra coverage is worth the modest difference.

How the Testing Works

Both panels use the same two samples: urine for chlamydia and gonorrhea, and a blood draw for syphilis, HIV, hepatitis, and herpes. The number of markers doesn't change how quick or comfortable testing is — it's the same visit either way.

Still Deciding Between a Panel and Single Tests?

If you're not sure a broad panel is the right approach at all, our comparison of a panel vs. individual tests can help you decide.

When to Test Sooner

• Symptoms like discharge, sores, or burning with urination.

• A partner who tested positive.

• A recent higher-risk exposure — a possible HIV exposure within 72 hours needs same-day care for PEP.

Frequently Asked Questions

Is a 10-panel STD test better than an 8-panel?
It's more complete, mainly by adding hepatitis A and extra markers. Whether you need it depends on your risk; an 8-panel already covers the major infections.

What's the difference between them?
Mostly hepatitis A and how HIV is counted. The core infections overlap heavily.

Which one should I get?
An 8-panel suits most routine screening; choose a 10-panel for the most complete coverage or after a higher-risk exposure.

The Bottom Line

An 8-panel and a 10-panel STD test overlap on the infections that matter most — the 10-panel just adds a bit more coverage, usually hepatitis A. Pick based on your risk and how complete you want to be, not the number alone. If you're ready, you can get tested and choose the panel that fits.

Last reviewed: September 2026

Medical review: This article is for informational purposes only and does not constitute medical advice. Panel contents vary by provider, so check the specific test list. Testing guidance is based on CDC STI testing recommendations.