You went into surgery expecting to come out better. Instead, something went wrong — and when you asked, the answer was some version of “that was a known risk. You signed the consent form.”
Sometimes that answer is true. It can also be the exact phrase a hospital uses to end the conversation before you find out the harm came from a preventable surgical error. In Nevada, the line between a surgical error and a known risk is a legal one — not a medical opinion handed to you by the same people who did the operation — and which side your case falls on decides whether you can recover anything at all.
Here’s how that line actually works, and how to find out where your case sits.

What’s the Difference Between a Surgical Error and a Known Risk?
A surgical error is a preventable mistake — care that fell below the accepted standard. The legal test is whether a reasonably competent surgical team would have done something different under the same circumstances. If the answer is yes, and that failure caused your harm, you may be looking at malpractice.
A known risk is a recognized complication that can happen even when the team does everything right. These are the risks a surgeon is supposed to disclose beforehand, in the informed-consent paperwork — the possibility of some bleeding, certain infections, a reaction no one could have predicted.
The hinge isn’t whether something bad happened. Bad outcomes happen after careful, competent surgery all the time. The hinge is whether the care met the standard, and whether a failure to meet it caused the injury. That distinction is the whole question, and it’s the same question at the center of what counts as medical malpractice in Nevada. A bad result on its own is not a case. A bad result caused by a breach of the standard of care can be.
Common Surgical Errors That Point to Negligence
Not every complication is negligence — but some categories almost always trace back to a failure in the operating room or recovery unit rather than to bad luck. When these happen, they usually reflect care that fell below the standard:
- Wrong-site, wrong-side, wrong-patient, or wrong-procedure surgery. These are often called “never events” because they’re not supposed to be possible with proper safeguards.
- Retained foreign objects — a sponge, clamp, or instrument left inside the body.
- Anesthesia errors — wrong dosing, failure to monitor vitals, or missing a dangerous reaction in time.
- Oxygen deprivation during surgery — a lapse in monitoring or airway management that starves the brain of oxygen.
- Nerve or organ damage from technique that fell below what a competent surgeon would have used.
- Failure to monitor after surgery — a complication that was catchable, missed until real damage was done.
- Medication or dosing errors in the OR or during recovery.
- Surgical infections traced to unsanitary conditions or broken sterile technique.
The common thread is that each of these can be tied back to a specific decision or lapse — something the team should have done and didn’t, or shouldn’t have done and did.
Known Risks: When a Bad Outcome Isn’t Malpractice
Every surgery carries inherent risk, and Nevada law does not treat an unlucky result as automatic negligence. If the team met the standard of care and a recognized complication happened anyway, that’s usually a known risk — not a case.
Genuine known risks include a certain amount of bleeding, some infections that occur despite proper sterile technique, anesthesia reactions that couldn’t reasonably be predicted, scarring, and procedures that simply don’t achieve the hoped-for result even when performed correctly. Medicine can’t guarantee outcomes, and the law doesn’t ask it to.
Higher-risk procedures — cardiac surgery, brain and spinal operations, major vascular work, transplants, emergency trauma surgery — carry a longer list of known complications. But a riskier surgery doesn’t erase the error-versus-risk line. It makes that line more important, because more can go wrong for reasons that have nothing to do with negligence — and because the only way to separate the two is a careful look at the records.
The consent form matters here, but not the way hospitals often imply. It covers the known risks of a procedure done within the standard of care. It does not cover negligence.
Does Signing a Consent Form Mean You Can’t Sue?
No. This is the single biggest misconception that stops Las Vegas families from ever picking up the phone.
A consent form documents that you were told about the recognized risks of a procedure. It is not a waiver of your right to competent care. Signing it does not protect a surgeon who operated on the wrong body part, left an object inside you, or fell below the standard a reasonable provider would have met.
If you were harmed by a preventable surgical error, “you signed the consent form” is not the end of the conversation — even when it’s delivered like it is.
How Nevada Decides — the Standard of Care and the Expert Affidavit
Whether a bad result was error or risk almost never comes down to what the hospital tells you, or even what your gut says. It comes down to the standard of care — the level of skill and judgment a reasonably competent provider would have used in the same situation — and whether the records show it was met.
Nevada then adds a step most people never expect. Before a medical malpractice case can even be filed here, it has to include a sworn statement from a qualified medical expert who has reviewed the records and confirmed the care fell below the standard. That requirement — the affidavit of merit — is strict. Recent Nevada Supreme Court rulings have tightened it to the point that even seemingly obvious cases, like wrong-site surgery, still need that expert sign-off to move forward.
That’s exactly why an honest answer requires pulling the operative notes, anesthesia records, and monitoring logs and having a medical expert read them. It’s also why some firms turn these cases away — the upfront expert cost is real. At Howard Injury Law, we advance those costs, and attorney Glen Howard spent years on the insurance-defense side before representing injured patients. He knows precisely how hospitals and their insurers use “it was a known risk” to close a file — because he used to be on the receiving end of those claims. If your situation looks like it may involve a facility-wide failure, a Las Vegas hospital negligence claim may reach the institution itself, not just the individual surgeon.
Where Las Vegas Hospitals Fit In
Surgeries don’t happen in a vacuum. They happen inside institutions — UMC, Sunrise, Valley, Centennial Hills, Spring Valley, Summerlin, Mountain View — and those institutions control the systems that make errors more or less likely: staffing levels in the recovery unit, sterilization, post-op monitoring, and who they credential to operate in the first place.
When the failure is systemic — an understaffed recovery floor, unsanitary conditions, a poorly vetted provider — the claim may be against the hospital as an organization, not only the surgeon. Nevada’s appellate courts have handled significant medical malpractice litigation involving Las Vegas hospital systems, including cases tied to Valley Health System facilities like Centennial Hills. The point isn’t any single verdict; it’s that facility-level negligence is a real, litigated part of how surgical harm happens in this city.
Can You Sue for a Surgical Error in Nevada?
Yes — if a medical expert’s review shows the care fell below the standard and caused your injury, and you’re still within the filing deadline.
That deadline is its own trap. Medical malpractice runs on a different clock than a typical injury claim, and a surgical error can stay hidden for months before anyone connects it to the harm. Nevada’s discovery rule accounts for that, but the timing is fact-specific and easy to misjudge, so it’s worth understanding Nevada’s medical malpractice deadline before assuming your window has closed — or that you have plenty of time.
If you do have a case, Nevada limits certain non-economic damages (like pain and suffering) in malpractice claims, but it places no cap on your economic losses — corrective procedures, future medical care, and lost income among them. What your specific claim is worth depends entirely on the records, which is one more reason a real review beats a guess.

Frequently Asked Questions
What is the most common surgical error?
There’s no single “most common” error, but the ones that most reliably signal negligence are the preventable ones — often called never events. Wrong-site or wrong-patient surgery and retained foreign objects (a sponge or instrument left inside) top that list because proper safeguards are designed to make them impossible. Anesthesia mistakes and post-operative monitoring failures are also frequent sources of serious harm. What these share is that they trace back to a specific lapse the surgical team could have prevented — which is what separates an error from an inherent risk. If one of these happened to you, it’s worth having the records reviewed rather than accepting a “these things happen” explanation.
Can you sue for a surgical error in Nevada?
Yes, if the facts support it. A viable claim generally requires three things: care that fell below the accepted standard, a resulting injury caused by that failure, and a filing that meets Nevada’s deadlines. There’s also a procedural hurdle unique to malpractice — your complaint must include a sworn affidavit from a qualified medical expert confirming the case has merit. That’s part of why an early records review matters so much: it tells you whether an expert would support the claim before any deadline forces the decision. A free case review is the fastest way to find out whether your situation clears that bar.
What’s the difference between a surgical error and a surgical complication?
A complication is a recognized risk of a procedure that can occur even when the surgical team does everything correctly — it’s disclosed in the consent process for a reason. A surgical error is a preventable mistake: care that fell below what a reasonably competent provider would have done. The same bad outcome can be either one, depending on how it happened. Excessive bleeding from a properly performed operation may be a complication; excessive bleeding because a surgeon nicked a vessel they shouldn’t have may be an error. Only a review of the operative records by a medical expert can reliably tell them apart — which is why the hospital’s own characterization isn’t the final word.
What are the chances of something going wrong during surgery?
Every surgery carries some risk, and higher-risk procedures — heart, brain, spinal, and major trauma operations — carry more. But the odds of a complication aren’t the same as the odds of negligence. A known risk that happens despite competent care is not malpractice, no matter how serious. What actually matters for a legal claim isn’t whether something went wrong, but whether it went wrong because the care fell below the standard. If you were told a bad result was “just one of the risks,” that may be accurate — or it may be a way to avoid a harder question that only the records can answer.
Does a signed consent form mean I gave up my right to sue?
No. A consent form acknowledges that you were informed of a procedure’s known risks. It is not a waiver of your right to competent, standard-of-care treatment. It doesn’t shield a provider who operated on the wrong site, left an object inside you, or otherwise fell below what a reasonable surgical team would have done. Hospitals sometimes point to the signed form as if it settles everything — it doesn’t. If the harm came from negligence rather than a disclosed risk, the consent form generally won’t stop a valid claim. When in doubt, have an attorney compare what you consented to against what actually happened.

Find Out Which Side of the Line Your Surgery Falls On
The hardest part is the not-knowing — the fear that you’re right about what happened, paired with a hospital telling you to let it go. You don’t have to settle that question alone, and you don’t have to settle it against the people who benefit from your silence.
A free, confidential case review answers it the only reliable way: we pull the records, have them read against the standard of care, and tell you plainly whether this looks like a surgical error or a known risk. Because Glen Howard once defended these cases for the other side, he can read the “known risk” explanation for what it is. There’s no fee to talk, we advance the expert costs, and there’s no fee unless we win. Request your free case review and find out whether you have a hospital negligence claim worth pursuing — before the filing clock decides for you.
Every case is different. This article is general information about Nevada law, not legal advice about your specific situation. Only an attorney who reviews your records can tell you whether your surgery involved a legal error.


