1 in 10 Americans Admit to Knowingly Giving Partner an STD

Shame, alcohol, and assumptions of "low risk" drive non-disclosure, new survey finds.

Published on Feb. 26, 2026

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A new survey by Testing.com reveals that among Americans who have tested positive for an STD, 45% say they have had sex without disclosing their status to a partner at least once. Of those, 17% say a partner later contracted an STI from them, and 1 in 10 Americans overall admit they have knowingly given a partner an STD. The leading reasons for non-disclosure include embarrassment, the influence of alcohol, and beliefs that the risk of transmission was low.

Why it matters

Hiding an STD from a partner can seriously harm their health, as non-disclosure puts the partner at risk and is a breach of trust that can damage relationships. Disclosure is important so both partners can decide about testing, treatment and protection.

The details

The survey of 7,895 U.S. adults ages 18 to 65 found that among those who tested positive for an STD, 45% say they have had sex without disclosing their status to a partner at least once. Of that group, 2% say they failed to disclose many times, 20% a few times, and 23% at least once. Nearly 6 in 10, or 59%, of those who did not disclose also report having unprotected sex without informing their partner. Seventeen percent of those who chose not to disclose say a partner later contracted an STI from them.

  • The survey was conducted in February 2026.

The players

Testing.com

A website that helps consumers advocate for their health by providing guides and products that make lab testing accessible, convenient and affordable.

Toni Brayer, M.D.

An internal medicine doctor and member of Testing.com's medical review board.

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What they’re saying

“Hiding an STD from a partner can seriously harm their health. Not disclosing can put the partner at risk and is a breach of trust that can permanently damage the relationship. Disclosure is important so both partners can decide about testing, treatment and protection.”

— Toni Brayer, M.D., Internal Medicine Doctor and Member of Testing.com's Medical Review Board

The takeaway

This survey highlights the concerning prevalence of STD non-disclosure, driven by factors like shame, alcohol, and assumptions of low risk. It underscores the importance of open communication about sexual health to protect partners and maintain trust in relationships.