Can You Get an STD If Both Partners Have No STDs?

Dr. Carlo Neri
May 26, 2025

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Yes, you can get an STD even if both you and your partner believe you're completely STD-free. While it may seem counterintuitive, sexually transmitted infections can still surface in monogamous relationships due to inaccurate testing, dormant infections, or incomplete screening.

Many people assume that being symptom-free means being safe, but STDs like herpes, HPV, and even HIV can remain undetected for months or years, especially if the right tests weren’t performed.

Table of Contents

If you're in a monogamous relationship and both you and your partner have tested negative for STDs, you might wonder if it's still possible to contract an STD. This question is crucial for understanding sexual health, building trust, and preventing infections.

What Does 'STD-Free' Really Mean?

Being "STD-free" means that you've tested negative for sexually transmitted diseases. However, it's important to understand that "no symptoms" doesn't always mean "no infection." Many STDs can be asymptomatic or dormant for long periods. For example, herpes and HPV can lie low for years before showing any signs. This is why comprehensive and recent testing is so important.

Testing for STDs involves more than just a simple blood test. Different STDs require different types of tests, and some infections can be missed if the wrong test is used. For instance, oral and anal STDs might need separate tests from genital infections. It's also crucial to get tested regularly, as STDs can be picked up at any time.

How Accurate Is STD Testing?

STD testing is generally reliable, but it's not foolproof. Not all tests cover all STDs, and some infections have "window periods", the time between exposure and when the infection becomes detectable. For example, HIV can take up to three months to show up on a test. This means that even if you test negative, you might still be infected if the test was done too soon after exposure.

False negatives are another concern. These happen when a test fails to detect an infection that is actually present. Retesting is often necessary to ensure accuracy, especially if you've had recent sexual contact with a new partner or if you have symptoms that suggest an STD.

Can STDs Appear Out of Nowhere?

STDs can't just pop up out of nowhere; one partner must have acquired the infection at some point. However, some infections can be acquired non-sexually. For example, herpes can be transmitted through non-sexual contact, such as sharing towels or kissing. Mother-to-child transmission during pregnancy or birth is another way STDs can be passed on. In rare cases, contaminated needles can also transmit infections.

Latent infections are another factor to consider. Some STDs can remain hidden for years before symptoms emerge. Herpes and HPV are notorious for this, as they can lie dormant and then flare up later. This is why it's so important to get tested regularly, even if you're in a long-term monogamous relationship.

Risks in Monogamous Relationships

Even in monogamous relationships, there are risks to consider. Serial monogamy, moving from one exclusive partner to another, can lead to undiagnosed past infections. Just because you're with one person now doesn't mean past infections can't resurface. The myth that only people with multiple partners get STDs is just that, a myth. Anyone can get an STD, regardless of how many partners they've had.

Mutual trust, open communication, and regular screening are key to managing these risks. Talking openly with your partner about your sexual history and getting tested together can help build trust and ensure both of you are truly STD-free.

Special Considerations

There are a few special considerations to keep in mind when it comes to STDs. Oral and anal STDs require site-specific testing, as standard genital tests might not detect these infections. It's also important to note that some antibiotics can "silently" cure certain infections, making them undetectable on tests.

Vaccines are another important consideration. While there are vaccines available for HPV and hepatitis B, not all STDs have vaccines. Getting vaccinated can provide an extra layer of protection, but it's not a guarantee against all infections.

How to Truly Minimize STD Risk

To truly minimize your risk of getting an STD, follow these steps:

  • Get Tested Together: Make sure both you and your partner get tested for all relevant sites and infections. This includes oral, anal, and genital tests.
  • Understand Window Periods: Be aware of the window periods for different STDs and get retested if necessary.
  • Use Protection: Use condoms or other barriers if there's any uncertainty or new risk.
  • Get Vaccinated: If available, get vaccinated for HPV and hepatitis B.

Also Read - UTI vs STD: Symptoms, Causes and Diagnosis

When to Seek Medical Advice

It's important to seek medical advice if:

  • You or your partner develop symptoms, even if you've both previously tested negative.
  • There's any doubt about your partner's sexual history or fidelity.
  • You're due for a regular checkup, even in a long-term monogamous relationship.

Key Takeaways

  • STDs don't arise spontaneously; they require transmission from an infected source.
  • Testing is vital, but not foolproof, timing and comprehensiveness matter.
  • Open communication, regular screening, and prevention are the best safeguards.

FAQs

Can you get an STD if both partners are virgins?

If both partners are truly virgins and have never had any form of sexual contact, the risk of getting an STD is extremely low. However, it's still possible to contract certain infections non-sexually, such as through contaminated needles or mother-to-child transmission.

Can You Get an STD If Both Partners Have No STDs?

No, it's highly unlikely if both partners are truly STD-free and monogamous. However, thorough testing, open communication, and regular screening are crucial to ensure you stay that way.

How often should you get tested for STDs?

The frequency of STD testing depends on your sexual activity and risk factors. In general, it's a good idea to get tested at least once a year, or more frequently if you have multiple partners or engage in high-risk behaviors. Even in monogamous relationships, regular testing can provide peace of mind and ensure both partners remain STD-free.

What should you do if you think you have an STD?

If you think you have an STD, the first step is to see a healthcare provider. They can perform the necessary tests and provide treatment if needed. It's also important to inform your partner(s) so they can get tested and treated as well. Early detection and treatment can prevent the spread of STDs and reduce the risk of long-term health complications.

Conclusion

If you and your partner are truly monogamous and have both tested negative for STDs, your risk of contracting an STD is very low. However, it's important to stay proactive about your sexual health, regardless of your relationship status. Regular testing, open communication, and using protection when needed can help ensure you both stay STD-free.

Key Takeaways

  • STDs don't appear out of nowhere; one partner must have been exposed.
  • Testing accuracy depends on timing and comprehensiveness.
  • Regular screening and open communication are essential for prevention.
  • Vaccines and protective measures add extra layers of safety.

References

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Medical Disclaimer

This AI tool provides general information only and should not be used for diagnosis or treatment decisions. Always consult healthcare professionals for medical advice.

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