When it comes to sexual health, the terms STI (Sexually Transmitted Infection) and STD (Sexually Transmitted Disease) are often used interchangeably. But is there actually a difference? At MyBLS.com, we believe that understanding these terms can make a big difference in your health decisions. Here's what you need to know.
What Is an STI?
An STI is an infection passed from one person to another through sexual contact, including vaginal, anal, or oral sex. What makes STIs tricky is that many of them don’t show symptoms, especially early on.
Examples include:
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Chlamydia
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Gonorrhea
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HPV (Human Papillomavirus)
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Herpes (HSV-1 and HSV-2)
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HIV
Since symptoms aren’t always obvious, people often carry STIs without knowing it, which is why regular testing is crucial.
What Is an STD?
An STD is the result of an STI that has developed into a disease, meaning it’s begun to cause symptoms or health complications. For example, untreated chlamydia can lead to pelvic inflammatory disease (PID), which would then be considered an STD.
STI vs. STD: What’s the Real Difference?
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STI = infection (often without symptoms)
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STD = disease or condition (typically with symptoms or complications)
All STDs begin as STIs, but not all STIs become STDs. Medical professionals now prefer the term STI because it emphasizes prevention and early detection before symptoms arise.
Why This Matters
Understanding the difference can help reduce stigma and encourage proactive testing. Many STIs are treatable—and some are curable—if caught early.
That’s why at-home STI testing is a smart, private, and proactive choice.
Stay in Control of Your Health with MyBLS
At MyBLS.com, we offer discreet, reliable at-home STI test kits. Whether you're testing monthly, quarterly, or just getting started, our STD Hero collection has a kit for your needs.
✅ No waiting rooms
✅ Fast results
✅ Peace of mind from home
Know your status. Protect your future.
