Concussion After a "Minor" Crash: Symptoms an RN Looks For & How It Can Affect Your Injury Claim in Colorado

Yes, a “minor” crash can cause a concussion, and the symptoms often show up late. A concussion happens when a hit to the head or body makes the brain move rapidly back and forth, and car crashes are a common cause. MedlinePlus, the National Library of Medicine's health site, says concussion symptoms “may not start right away; they may start days or weeks after the injury” (MedlinePlus: Concussion). In Colorado, a crash injury claim generally must be filed within three years (C.R.S. § 13-80-101(1)(n)).

Which concussion symptoms should I watch for after a crash?

• • Headache, or neck pain.
• • Dizziness, or ringing in the ears.
• • Nausea.
• • Tiredness, or feeling dazed and “not yourself” for days.
• • Trouble focusing, remembering, or finding words.
• • Headaches that come back with screens, reading, or bright light.

Picture it. You're stopped at the light on Camino del Rio and someone taps your bumper at 15 miles an hour. Nobody calls an ambulance. That night your head aches, the TV feels too loud, and the next morning you can't finish a sentence at work. That pattern is common, and it's exactly the one insurers later call “too minor to matter.” It is common at the population level, too. Car crashes caused 15.7% of all mild-concussion ER visits nationwide, trailing only falls and being struck by something (Journal of Head Trauma Rehabilitation, 2017).

When is a head injury after a crash an emergency?

MedlinePlus lists warning signs that call for medical help right away after a head injury (MedlinePlus: Head injury, first aid). Call 911 or go to the ER if the person:

1. 1. Becomes very sleepy or hard to wake.
2. 2. Acts strangely, or their speech stops making sense.
3. 3. Has a severe headache or a stiff neck.
4. 4. Has a seizure.
5. 5. Has pupils of unequal size.
6. 6. Can't move all or part of an arm or leg.
7. 7. Passed out, even briefly.
8. 8. Vomits more than once.

The same page notes that symptoms of a head injury “can occur right away or may develop slowly over several hours or days.” So feeling fine at the scene proves very little.

Why can a low-speed crash cause a concussion?

“But I never hit my head” is the line I hear most. You don't have to. When the car stops short, your body stops a beat later, and your brain stops last. That little slosh inside the skull is the injury, what MedlinePlus calls the brain bouncing or twisting. Speed matters less than people assume. How you were sitting, whether you braced, and which way you were looking matter a lot.

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Emergency nursing teaches you fast that crash photos don't tell you how hurt someone is. A crumpled bumper can walk out fine. A scuffed one can mean weeks of headaches and no screen time. Trust the symptoms, not the dent.

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Does a normal CT scan mean I don't have a concussion?

No. A normal CT scan means no bleeding, swelling, or skull fracture was seen. It does not rule out a concussion. MedlinePlus says a concussion is diagnosed through a physical exam and a neurological exam that checks vision, balance, coordination, and reflexes, and sometimes memory and thinking. A scan is used to look for bleeding or a fracture. Insurers still wave “normal imaging” around as if it ends the discussion, so make sure your chart records the exam findings, not just the scan.

Why do insurers downplay concussions from minor crashes?

Adjusters look for gaps: time between the crash and the first visit, time between visits, and symptoms that appear in the chart late. If you waited three days to see a doctor, expect that delay to be used against you. The usual lines sound like this: the crash was too small, a real concussion would have sent you to the ER, the scan was normal, the symptoms were there before. Each one ignores how concussions actually behave, and each one works best against a thin medical record.

How does a concussion affect a Colorado injury claim?

A concussion can touch every part of a Colorado injury claim. Medical costs can include the ER, a neurologist, cognitive testing, vestibular therapy, and follow-up. Lost pay can come from headaches or light sensitivity that keep you off screens. Daily life can shrink for weeks: no driving, no workouts, no reading to your kids. MedlinePlus notes that most people recover fully, but it can take time. When symptoms last, the claim reflects that.

Two Colorado rules matter along the way. Your auto policy likely includes $5,000 of MedPay for early bills, whoever was at fault (C.R.S. § 10-4-635). And if the other driver says you share the blame, you still recover as long as your fault is less than theirs (C.R.S. § 13-21-111).

What should I do if I think I have a concussion after a crash?

1. 1. Get checked the same day or the next, even if you only feel “off.”
2. 2. Tell the doctor about the crash, so the chart ties your symptoms to it.
3. 3. Describe every symptom plainly, including sleep, mood, and focus problems.
4. 4. Follow up with your primary doctor or a neurologist as symptoms change.
5. 5. Rest your brain as your doctor directs, then return to activities slowly.
6. 6. Keep a short daily symptom log.
7. 7. Hold off on recorded statements to insurers until you get advice.

Kids need extra watching. A child may not have words for a headache or fogginess, so look for changes: irritability, trouble at school, new sleep problems, or complaints that their head hurts. Tell the pediatrician about the crash, even if it seemed small.

There is no such thing as a minor brain injury to the person living with it. Something feel wrong after a crash? Get evaluated, and keep records. Our brain injury practice can help if an insurer is pushing back — start with a free consultation. Neck pain often rides along with a concussion, so our whiplash guide may help too.