A concussion is a traumatic brain injury. Not a headache, not a bruise, not something you shake off because the CT scan came back clean. The emergency room told you to rest and follow up, and that instruction was medically correct and legally catastrophic, because the record now says a person with a normal scan was sent home. Six weeks later you cannot hold a thought through a meeting, and the adjuster has already written the file as minor. The Vertanous Firm has recovered more than $60 Million for injured Californians, and we build brain injury cases medicine first.
The Short Answer
When clinicians say mild traumatic brain injury, they are classifying what happened at the instant of impact: a brief loss or alteration of consciousness, or none at all. They are not predicting your next year. The word is a triage category. It was never a promise.
Everyone else hears it differently. Your employer hears that you are fine. Your family hears that you should be over it. The adjuster hears an opportunity. And you, still in the fog, hear a doctor telling you it was not serious, so you stop mentioning the symptoms, which is exactly when the medical record stops recording them. This page is part of our complete guide: California traumatic brain injury lawyer.
The Mechanism
This is the single most useful fact on this page, and almost nobody is told it in the emergency department. The brain is a soft organ suspended inside a hard skull. When a vehicle stops in a fraction of a second, the head accelerates and decelerates with it, and the brain moves inside the skull. That movement is a mechanism of injury on its own, whether or not your head ever contacted the steering wheel, the window, the airbag, or the headrest.
Understand what this means for your claim. The first question an adjuster asks is whether you hit your head. Answer honestly that you did not, and the answer gets written down as though it settles the question. It settles nothing. Rear-end collisions in particular produce exactly this pattern, a violent change in speed with no head strike at all, which is one reason we treat so-called minor impacts seriously on our rear-end accident page.
Example: A driver is stopped on Lake Avenue and is struck from behind by an inattentive driver. Her head never touches anything. At the scene she declines an ambulance and tells the officer she is fine. Two days later she is nauseated, sensitive to light, and cannot follow a conversation at work. Her urgent care note says no head trauma.
Conclusion: The absence of a head strike does not rule out a concussion, and the at-the-scene statement that she was fine reflects adrenaline rather than a medical assessment. What she needs now is an accurate history given to the right clinician, describing the mechanism, the onset of each symptom, and the timeline, so the record reflects the injury instead of the first impression.
The Scan
The emergency CT scan is the piece of evidence the defense will wave at a jury, and it is being used for something it was never designed to do. An emergency head CT generally looks for bleeding, swelling, and skull fracture. Those are the findings that change what happens in the next hour. It is not a test for concussion, and the absence of those findings is not a finding that your brain is uninjured.
So a normal scan means two true things at once. It means the emergency physicians ruled out the injuries that kill people that night, which is genuinely good news. And it means essentially nothing about whether you sustained a concussion, because a concussion is a clinical diagnosis built from mechanism, symptoms, examination, and course over time.
The defense argument that follows from a clean scan is not a medical argument. It is a rhetorical one, and it works only on a jury that has never had it explained. Explaining it is our job, through treating physicians who actually examined you rather than a retained expert who reviewed paper.
Told your scan was clean, so there is nothing wrong? Talk to a firm that takes the medicine seriously.
Free Case ReviewThe Symptoms
Concussion symptoms are rarely dramatic. They are cumulative, and they show up in ordinary tasks:
Two features of this list matter enormously to a case. First, symptoms often arrive late. The first day or two after a crash are chemically unusual, and people routinely feel fine at the scene and unwell by the weekend. Second, the injured person is frequently the last to notice. It is the spouse, the coworker, and the close friend who see that something changed. If the people who know you say you have not been the same since the crash, that observation is evidence, and it is developed through witnesses, not adjectives.
The Gap
Brain injury cases are lost in the paperwork of the first month, and almost always in the same three ways.
The scene statement. You told the officer you were fine, because at that moment you believed it. That sentence appears in the report and gets read to a jury as a medical opinion you rendered on the pavement.
The chart that says no complaints. Emergency departments triage. You came in for neck pain and a laceration, and nobody asked whether you were confused, so nothing about cognition was charted. A defense expert will later describe that silence as an absence of symptoms rather than an absence of questions.
The treatment gap. You were told to rest, so you rested. Six weeks with no visits looks like recovery in a record even when it was obedience. Carriers price gaps mechanically, and software-driven claim valuation does not know the difference between a person who got better and a person who did what the discharge sheet said.
None of this is your fault. All of it is fixable if it is addressed early, which is the practical reason to talk to a lawyer while the case can still be built rather than repaired.
Example: A man rear-ended on the 210 is discharged with a normal CT and instructions to rest. He returns to work after a week, struggles, and says nothing because he does not want to seem unreliable. Three months later his supervisor moves him off a project. His medical file for that period is empty, and the adjuster values the claim as a soft tissue case.
Conclusion: The injury was real the whole time, and the record simply never captured it. The path forward is a proper neurological workup, neuropsychological testing where indicated, and before-and-after witnesses who can describe concrete changes: the supervisor, the coworker, the wife. That is how an empty chart becomes a documented case.
What to Do
Tell the clinician how your head and body moved, not only where it hurts. Say whether you lost time, felt dazed, or cannot recall the impact.
Word-finding trouble, irritability, tearfulness, and forgetfulness belong in the chart. Left out, they are treated later as invented.
Three lines a day. What you could not do, what it cost you, and how long it took to recover. Contemporaneous notes beat memory in every deposition ever taken.
Specific and dated. Not he seems off, but he missed our daughter's recital and could not remember scheduling it.
If symptoms persist beyond the expected window, ask for referral to a specialist. Persistent symptoms are a recognized outcome, and they need appropriate care rather than patience.
You owe the other driver's insurer nothing, and a foggy brain is a poor place from which to be interviewed by someone trained to build a defense.
Building the Case
A concussion case is won with treating physicians, objective testing where it is available and appropriate, and witnesses who knew you before. Neuropsychological testing measures function rather than anatomy, which is precisely the point when the anatomy scan is normal. Where symptoms persist and future care is likely, life-care planning translates that care into numbers a jury can evaluate, and our brain injury practice page covers that work in full.
The deadline matters too. A California personal injury action is generally subject to the two-year statute in Code of Civil Procedure section 335.1, and shorter deadlines apply where a public entity may be responsible. The practical problem with brain injury is that the injury is often understood late, well into a limitations period nobody was tracking.
If the crash caused a more severe injury, or if the collision involved a truck, a motorcycle, or a fatality, we handle those too: car accidents, truck accidents, motorcycle accidents, and wrongful death. Prior results do not guarantee a similar outcome, and every case turns on its own facts. Call (626) 888-2223 and tell us what changed.
If we don't win, you don't pay.
The consultation is free. The representation is on contingency. If there is no recovery, you owe no attorney fee.
Questions We Hear Every Week
Yes. A concussion is a traumatic brain injury. The medical label mild traumatic brain injury describes the moment of injury, meaning a brief loss or alteration of consciousness, not how the months afterward will go. The word mild is a classification, not a prognosis, and insurers use the ordinary meaning of the word to argue that nothing much happened to you.
Yes. The brain sits inside the skull and moves when the head accelerates or decelerates suddenly. A rapid change in speed can injure the brain even where the head never contacts the steering wheel, the window, or the headrest. This matters because the first question an adjuster asks is whether you hit your head, and a truthful no is then treated as proof that no brain injury exists.
No. An emergency CT scan is generally used to look for bleeding, swelling, and skull fracture, the things that require immediate intervention. It is not a test for concussion. A normal scan means the emergency doctors ruled out an emergency, which is good news. It is not evidence that your brain is uninjured, and defense arguments that treat it that way are arguing against how the test works.
It varies, and honest answers on this point are individual rather than statistical. Many people improve substantially within weeks. Some do not, and symptoms persist for months or longer, which is a recognized outcome rather than an exaggeration. What matters legally is documentation: symptoms recorded as they occur, with the right specialists, rather than reconstructed from memory a year later.
Possibly, and the word only is doing damage in that sentence. A concussion caused by someone else's negligence is a real injury with real consequences, and California law compensates the loss of the life you had. The strength of a case depends on liability, on documentation, and on whether the medicine was taken seriously from the start. A free consultation will tell you where you stand.
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