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Almost certainly not. Chronic traumatic encephalopathy is linked to repeated head impacts absorbed over years, not to a single crash, and it can only be confirmed by examining brain tissue after death. No living person has a CTE diagnosis.
What a car accident can cause is a traumatic brain injury that’s diagnosable now, treatable now, and compensable now, and that’s the claim worth building. A Boca Raton car accident lawyer will focus on what doctors can actually document about your brain today.
Why nobody can tell you that you have CTE
CTE is a neuropathological diagnosis. It’s identified by finding a specific pattern of tau protein around small blood vessels deep in the folds of the brain, and that requires tissue. As Boston University’s CTE Center puts it, “CTE can only be diagnosed after death by postmortem neuropathological analysis.” There’s no blood test and no scan that establishes it in a living patient.
Researchers do have a name for the symptom pattern in living people: traumatic encephalopathy syndrome, or TES. A 2021 NINDS consensus panel set criteria for it: substantial exposure to repeated head impacts, plus cognitive impairment or problems with mood and behavior that get worse over time. TES describes the clinical picture. It doesn’t confirm the disease, and the criteria are known to produce false positives.
That distinction is important for a legal claim. An expert can testify credibly about a documented brain injury. No expert can testify that a living plaintiff has CTE.
What repeated head trauma actually means
The exposure associated with CTE is repetitive head impacts, which includes both diagnosed concussions and the sub-concussive hits that produce no symptoms at all. The research base is built almost entirely on contact sports and military blast exposure, where researchers can measure years of accumulated exposure and have found a dose-response relationship between time played and disease severity.
Motor vehicle accidents aren’t part of that established pathway. Someone who has been in several serious crashes over a lifetime has had more head trauma than someone who hasn’t, but that isn’t the same as a documented risk of CTE.
What a single crash can cause
Plenty, and all of it is provable in ways CTE is not:
- Concussion, which is a mild traumatic brain injury. Most people recover, but a meaningful minority don’t recover quickly.
- Persistent post-concussive symptoms, where headaches, light and noise sensitivity, sleep disruption, memory problems, and irritability continue for months. This is what people usually mean by post-concussion syndrome.
- Moderate and severe TBI, which can mean bleeding, swelling, inpatient rehabilitation, and permanent changes to what a person can do independently.
These come with medical records, imaging, and neuropsychological testing behind them. A brain injury claim is built on that evidence.
What if the crash wasn’t your first head injury?
Then the injury may be worse than the same impact would be for someone else, and Florida law accounts for that.
Someone with a prior concussion history can be more vulnerable to a subsequent one, and that vulnerability doesn’t reduce what the at-fault driver owes. Florida’s standard jury instruction on aggravation tells jurors to award only the damages caused by the worsening if they can separate it out. And if they can’t, or if the condition wouldn’t have existed apart from the injury, to award damages for the entire condition.
That’s the opposite of what a lot of people assume. A history of head injuries isn’t a discount for the driver who hit you.
What are the warning signs of a serious brain injury after a crash?
Get medical care immediately if you or someone with you develops any of these after a blow to the head:
- A headache that keeps getting worse or won’t respond to over-the-counter medication
- Repeated vomiting or ongoing nausea
- Extreme drowsiness, or someone who can’t be woken
- Slurred speech
- Confusion, agitation, or unusual behavior
- Convulsions or seizures
- Weakness, numbness, or loss of coordination
- Clear fluid draining from the nose or ears
Any one of these warrants an emergency room visit, not a wait-and-see.
Can you be compensated without a CTE diagnosis?
Yes. What a brain injury claim requires is medical evidence of the injury and its effect on your daily life: treating physician records, neuropsychological testing, and documentation from people who see the difference day to day.
Two rules to point out: You generally have two years from the crash to file suit. And beyond medical bills and lost income, recovering for pain and suffering from the at-fault driver requires a permanent injury within a reasonable degree of medical probability, or a significant and permanent loss of an important bodily function, which in a brain injury case is usually the central dispute.
Talk to a lawyer about a brain injury claim
Eleven of the partners at Lytal, Reiter, Smith, Ivey & Fronrath are recognized as Super Lawyers, and the firm’s staff includes registered nurse paralegals who review medical records alongside the attorneys. There’s no fee to talk with us, and you pay no attorney’s fees unless compensation is recovered. Call us at (561) 655-1990 or contact us online for a free consultation.
