Yes, you can sue someone who gave you herpes. Courts treat it as a personal injury case, and people win these lawsuits when they can show the other person knew or reasonably should have known they carried the virus and had sexual contact without telling them. The claim is not about the sex itself. It is about the failure to disclose a known, incurable infection before that sex happened.
What You Have to Prove
A viable case rests on four connected facts. Miss one and the claim fails.
- The defendant was infected before you were. A diagnosis they received after the relationship ended is not enough. You need evidence of a prior positive test, documented outbreaks, or a history of antiviral prescriptions.
- They knew, or should have known. Actual knowledge means a prior diagnosis, a doctor’s warning, or recognized symptoms. Constructive knowledge covers the person who had recurring sores or was told by a previous partner and chose not to get tested. Willful ignorance does not shield a defendant.
- They caused your infection. This is usually the hardest element. You need a timeline: a negative test or absence of prior exposure before the relationship, and a diagnosis afterward. Other sexual partners in the same window make this harder.
- You were actually harmed. Medical costs, emotional distress, lost wages, and the ongoing weight of an incurable condition all count, but you have to be able to show them.
The Legal Theories Behind the Claim
Most complaints plead more than one theory and let the evidence decide which survives.
Negligence is the workhorse. It applies when a person who knew or should have known they carried genital herpes failed to warn a partner or take precautions, and that failure caused the infection. It has the lowest bar because you do not need to prove the defendant lied or intended harm, only that they fell below a reasonable standard of care.
Battery applies when contact is harmful or offensive. The sex was consensual on its face, but the argument is that the consent was not informed. You agreed to sex, not to sex with someone carrying an undisclosed infection, and that gap can turn otherwise consensual contact into battery.
Fraud fits when you directly asked about STD status and were lied to. If your partner told you they were “clean” or recently tested when they were not, and you relied on that statement in deciding to have sex, fraud is on the table.
Evidence to Preserve Now
Start before you file. Phones break, accounts get deactivated, and memories fade.
- Medical records. Your own diagnostic tests, and ideally a negative test from before the relationship. The defendant’s prior records and prescription history can often be reached through discovery once the case is filed.
- Written communications. Texts, emails, and social media messages where the defendant discusses their status, mentions symptoms, apologizes, or denies having an STD. A single message reading “I should have told you” can outweigh a stack of records. Screenshot everything.
- Timeline evidence. Photos, travel records, receipts, or friends who can place the relationship in time relative to your diagnosis.
- Witness testimony. Ex-partners or friends the defendant told about their diagnosis can corroborate that they knew.
Why You Will Likely Need a Medical Expert
Multiple appellate courts have held that jurors cannot figure out on their own who transmitted herpes to whom. Without expert testimony from an infectious disease specialist, cases risk dismissal even when the circumstantial facts look strong. An expert can testify about transmission routes, incubation periods, the difference between an initial outbreak and a recurrence, and whether your diagnosis timing lines up with contact with the defendant. Budget for this from the start.
How Long You Have to File
Every state sets a deadline. Negligence claims are typically two to three years. Battery runs about two to four years. Fraud can stretch to six in some jurisdictions.
The clock usually does not start on the date of sexual contact. Under the discovery rule, it starts when you first discovered, or reasonably should have discovered, that you were infected. Herpes can stay dormant for months or years, and the discovery rule exists for exactly this kind of delayed injury. In practice, your deadline usually runs from diagnosis or from the first recognizable symptoms. Once the statute expires, the strongest evidence in the world will not save the claim. If you think you are anywhere near your window, talk to an attorney now.
What You Can Recover
Herpes is permanent, and damages reflect that. Reported outcomes range from settlements in the low six figures to jury verdicts in the millions.
Economic Damages
These cover documented financial losses: antiviral medication (whether taken daily for suppression or only during outbreaks), doctor visits, periodic testing, and wages lost to outbreak-related absences. Because treatment continues for life, these numbers add up.
Non-Economic Damages
These compensate for pain during outbreaks, emotional distress, anxiety about future relationships, and loss of enjoyment of life. In many cases this is the largest portion of the award, because the emotional and relational impact of the diagnosis outstrips the medical bills.
Punitive Damages
Where the defendant deliberately hid a known diagnosis, lied when directly asked, or had sex during an active outbreak, punitive damages may be available on top of compensatory damages. They punish the conduct rather than compensate you, and not every case qualifies, but juries have awarded them where the deception is clear.
Defenses You Should Expect
- “I didn’t know.” The most common defense, and often where these cases are won or lost. Many HSV infections produce no obvious symptoms, so the argument has some grounding. You counter it with evidence of prior diagnoses, prescriptions, discussed symptoms, or communications showing awareness.
- Someone else infected you. If you had other partners in the relevant window, the defense will point to them. A clear before-and-after timeline is the answer.
- You knew and consented. If the defendant actually disclosed and you went ahead anyway, informed consent is a complete defense.
- Comparative fault. In many states, damages can be reduced if you did not ask about status, request test results, or use barrier protection.
Keeping Your Name Out of the Record
Lawsuits are public, and the details of your sexual history and diagnosis would ordinarily be accessible. That prospect stops many people from filing valid claims. Many courts allow plaintiffs in STD cases to file as Jane Doe or John Doe. In federal court, you need the judge’s permission, which typically means showing that the sensitivity of the medical information outweighs the public interest in open proceedings. State courts vary, but judges frequently grant pseudonym requests in these cases. Ask your attorney to move for anonymous filing before the case becomes public.
Criminal Charges Are Separate
Many states criminalize knowingly transmitting an STD or failing to disclose before sex, ranging from misdemeanor to felony depending on the jurisdiction. A prosecutor decides whether to file, not you. Criminal proceedings and your civil lawsuit run on independent tracks, and you can win the civil case whether or not charges are ever brought.
What These Cases Look Like in Practice
Most settle before trial. Defendants have strong personal reasons to keep the matter private, and that pushes settlement values up compared to typical personal injury cases. Amounts still vary widely based on evidence, the defendant’s assets, and whether any insurance responds.
Lawyers typically take these cases on contingency, usually 33% to 40% of the recovery, with no upfront fee. You will still likely face costs for expert witnesses, filing fees, and discovery. Some firms advance those costs and deduct them at the end; others bill as they go. Get the arrangement in writing before you sign.
Experience in STD transmission cases matters here more than in ordinary personal injury work. The medical proof, the privacy motions, and the emotional dynamics all reward a lawyer who has done this before. A general personal injury attorney can take the case, but one who has handled the transmission-source and knowledge questions will handle it better.