Do I Have to Tell a Partner I Have an STI?

Few dating conversations cause as much dread as disclosing an STI, and the legal questions make it worse. The truth is that the law’s answer depends on where you live and which infection is involved, while the respectful answer is simpler: tell a partner before sex, not after. This article covers what United States law requires, what health agencies recommend, and how to have the conversation without turning it into a confession of shame.

What Does the Law Actually Say About Disclosure?

There is no single nationwide rule; STI disclosure requirements come from state law, and they differ a great deal. A CDC review found that very few states have laws or regulations specific to common bacterial STIs such as chlamydia, gonorrhea and syphilis. In most situations, the only thing a physician is required to do beyond diagnosing and treating you is report the case to the state or local health department, as their state’s laws direct.

That reporting does not automatically reach your partners. Health department follow-up varies, and some states require providers to make a good faith effort to inform partners while others do not. In practice, responsibility for telling a partner usually rests with the person diagnosed.

The stakes can be criminal in some states. Seven states have specific laws about spreading sexually transmitted diseases generally, which may cover conditions such as herpes, chlamydia, genital warts and gonorrhea, and 26 states have laws about spreading HIV specifically. To bring charges, prosecutors generally have to prove that you knew you had the infection, had received a diagnosis from a medical provider, and failed to inform partners, putting them at risk.

Which Infections Do State Laws Name Specifically?

HIV is the infection states single out most often, and they assign the duty in different ways. Michigan and Indiana place the obligation directly on the person who tests positive, who is legally required to notify past sexual contacts. Texas and several other states take a different approach: the law either requires or authorizes doctors and public health officials to contact a patient’s known sexual partners on the patient’s behalf.

Georgia shows how far penalties can go. Under Georgia Code section 16-5-60, knowingly having sex with someone without telling them you have HIV or hepatitis is classified as reckless conduct and treated as a felony, carrying heavy fines and a potential jail sentence of up to 10 years.

Because states also differ on how they classify non-disclosure, with potential charges ranging from reckless behavior to criminal assault depending on the jurisdiction, never rely on a friend’s summary of the law. Check your own state health department’s website, or ask a lawyer licensed in your state if a legal question genuinely worries you.

Why Do the Rules Differ So Much From State to State?

Public health power in the United States belongs mostly to the states, so each legislature decides which infections must be reported, what providers must do, and whether non-disclosure is a crime. Many providers assume a duty to warn partners exists everywhere, but a CDC review found no direct duty for physicians to warn third parties about potential STI exposure in any state, even though such duties exist for other serious medical conditions.

That gap surprises people, and it is exactly why you cannot outsource disclosure to the healthcare system. The system reports, sometimes follows up and occasionally notifies, but the conversation with the person in front of you belongs to you.

What Does the CDC Say About Telling Partners?

Current CDC guidance is that partner services, notification included, should happen without pressure or coercion, with the choices of both the person diagnosed and their partners respected. Partner services are the range of efforts, from health departments, medical providers and patients themselves, meant to get exposed partners tested and treated and to reduce transmission.

How much help you get depends on the infection. Most health departments routinely attempt to provide partner services for infectious syphilis and for new HIV diagnoses, and they should provide them for possible cephalosporin-resistant gonorrhea. Relatively few routinely provide partner services for gonorrhea, chlamydia or trichomoniasis.

One tool worth knowing about is expedited partner therapy, or EPT. For chlamydia or gonorrhea, a clinician can give you prescriptions or medication to take to your partner without that partner being examined first. The CDC considers EPT a useful option, particularly for male partners of women with chlamydia or gonorrhea. It solves the treatment problem, not the honesty problem: your partner still needs to know what they were exposed to so they can make their own decisions going forward.

How Do You Bring It Up Before Things Get Intimate?

Bring it up before clothes come off, in plain language, without a speech. The right moment is once you both know sex is a realistic possibility, not in the moment itself when pressure is highest and clear thinking is lowest. If you are still sorting out expectations with someone new, our guide to asking a match what they want covers the same principle: clarity early, so nobody is deciding under pressure.

A workable script is short and factual. Something like: “Before this goes further, you should know that herpes is part of the picture here. It is managed with medication, and protection gets used every time. Ask anything you want.” Keep it to a few sentences. You are giving someone information they need in order to consent, not asking for forgiveness.

Consent is the heart of this. A partner can only give informed agreement if they know what they are agreeing to, which is the same standard you would want applied to you. Our article on consent in casual dating goes deeper on how clear questions protect both people. If saying it out loud feels impossible, a clear written message is an acceptable alternative, though a conversation makes it easier for them to ask questions and for you to answer.

What If Someone Reacts Badly?

Expect any reaction from indifference to devastation, and give the person a moment before you judge which one you got. Counseling guidance for genital herpes diagnoses notes that responses vary widely, partly because of the stigma attached to the infection, and that how the news is delivered shapes how someone adjusts to it. Answer factual questions honestly, mention that testing is simple and treatment exists, and do not fill silence with apologies.

If the reaction is mocking, cruel, or turns into them telling other people without your permission, that tells you about their character, not your worth. And if someone uses your status to threaten or control you, that is a serious warning sign. Our article on early red flags like pressure and control explains when a reaction crosses the line and the healthiest move is to walk away from the whole situation.

For a partner you plan to see more than once, yes, it is often the easiest version of this conversation. Getting tested together turns an awkward one-sided disclosure into a shared habit, and sharing your own recent results makes it natural to ask about theirs. Our guide to sexual health and STI testing covers what tests screen for, where to go and how often casual daters should test.

Keep one thing in mind: many STIs cause no symptoms, so a clean-looking partner is not the same as a tested partner. Someone can carry and pass an infection without ever feeling sick, which is why testing, not appearance, is what makes honest results possible on both sides.

Where Can You Get Free, Confidential Help?

Start with your state or local health department. Partner services exist precisely for this situation, and they can include clinical evaluation, counseling, diagnostic testing and treatment, along with help notifying partners when a health department offers it for your infection.

For the emotional side, research consistently finds that counseling helps people cope with an STI diagnosis, manage the infection and reduce transmission risk, so asking a provider for a referral is a reasonable request, not an overreaction. For legal questions, since state laws on disclosure and criminal penalties vary widely, talk to a qualified attorney in your state rather than relying on internet forums. And if you are unsure what to say, writing out your disclosure message and having a counselor or trusted friend read it first can take most of the fear out of pressing send.

Good move

If saying it out loud feels impossible, write it as a short text, set it aside for an hour, and reread it before sending. A calm, factual message you have reviewed once is better than a panicked one delivered live.

Asked often

Can I be charged with a crime for not disclosing an STI?

In some states, yes. Prosecutors generally have to show that you knew you had the infection, had been diagnosed by a medical provider, and failed to inform a partner, which put them at risk. The specific infections covered and the penalties depend on your state.

Will my doctor tell my partners for me?

Usually no. In most cases, a provider’s required duty ends with reporting your diagnosis to the state or local health department. Some health departments then do partner notification, most often for syphilis and HIV, but many bacterial STIs get no follow-up at all.

Do I have to disclose in person?

No law requires one method. A clear text or message is acceptable if a face-to-face conversation feels impossible, though an in-person or phone conversation makes it easier for your partner to ask questions.

What is expedited partner therapy?

Expedited partner therapy, or EPT, is when a clinician gives medications or prescriptions to a patient diagnosed with chlamydia or gonorrhea to pass along to their partner without examining that partner first. The CDC considers it a useful treatment option, but it does not replace telling your partner what happened.

This guide is general information, not medical, legal or professional advice. If you’re in danger, call 911. For confidential support, contact the National Domestic Violence Hotline at 1-800-799-7233 or RAINN at 1-800-656-4673.