Concussion After a Crash: What to Know, Watch and Document
Crashes often cause head injuries that are easy to miss in the first few days. This guide brings together what patients, families and providers ask most.
Who this is for: Written for people who were recently in a crash, the family members who notice changes, and the Florida providers who see them afterward.
Key takeaways
- A concussion can happen without a direct blow to the head and without losing consciousness.
- Symptoms may appear or become noticeable days after the crash.
- A normal CT scan helps rule out bleeding, but it is not designed to detect the functional changes of a concussion.
- A dated symptom log helps your treating provider see the trend.
- Red-flag symptoms are emergencies. Go to the ER or call 911.
How a crash can injure the brain
In a collision, the head can move forward and back fast enough for the brain to shift inside the skull, even if the head never strikes anything. That is why a concussion is possible in a low-speed rear-end crash, on a motorcycle with a helmet, or in a slip and fall.
Because neck and back pain usually get attention first, quieter changes in thinking, sleep, balance or mood can go unnoticed. Recognizing them early gives the treating provider a fuller picture.
Feeling fine at the scene does not rule out a head injury.
Signs worth writing down
Common concussion symptoms include headache, dizziness, nausea, trouble concentrating, memory lapses, sensitivity to light or noise, sleep changes and irritability. Some show up right away. Others become clear only when work, school or driving ask more of the brain.
Write down the date each symptom started, how strong it is, and what makes it better or worse. Ask someone close to you to note changes they see.
Start here, then go deeper: TBI Diagnostics Explained, Concussion Recovery and Family Guide, How mobile testing works and all concussion education articles.
When to ask about testing
If symptoms are not improving after the first few weeks, are getting worse, or are affecting daily life, ask your treating provider whether standardized concussion testing makes sense. Braintree performs testing at the provider's office. A visit typically takes 30 to 60 minutes, and the physician-reviewed diagnostic report goes to the treating provider, typically within 48 hours, or 7 to 10 days when labs are included.
Articles in this guide
- Concussion Signs After a Car Accident That Providers Should Document
- Concussion vs. Whiplash: Why Symptoms Overlap After a Crash
- Delayed Concussion Symptoms: Why They Show Up Days Later
- Rideshare Accident Head Injuries in Florida: Next Steps
- Wearing a Helmet and Still Concussed? How It Happens
- Slip-and-Fall Head Injuries: Documenting a Possible Concussion
- Can You Have a Concussion Without Losing Consciousness?
- Prior Injuries and Concussion Evaluation: What to Disclose
- Boating Accident Head Injuries in Florida
- Pedestrian Accidents and Head Injury in Florida
- How Statewide Mobile TBI Testing Coverage Works in Florida
- Head Injury Red Flags: When to Go to the ER Right Away
- Post-Accident Head Injury Evaluation
- Patients: What to Expect on Testing Day
- Testing Day Preparation Checklist
- Clinical Leadership & Physician Review
- Tampa Bay Mobile TBI Testing (Home Base)
- Brandon & Riverview Mobile Concussion Testing
- Lakeland & Winter Haven Mobile TBI Testing
- Pasco County Mobile Concussion Testing
- Hernando & Citrus Mobile Concussion Testing
- Kissimmee & Osceola Mobile TBI Testing
- Seminole County Mobile Concussion Testing
- Lake & Sumter Counties (The Villages Area) Concussion Testing
- Charlotte County Mobile TBI Testing
- Contact Braintree Health Partners
- Careers (Field Technicians)
- Press & Media
- How to Use the Braintree Crash Map
- Accident Types We Support (Auto, Fall, Work, Motorcycle)
- Palm Coast & Flagler Mobile TBI Testing
- Highlands County & Heartland Mobile TBI Testing
Emergency warning signs
After any crash, get emergency care right away for a worsening headache, repeated vomiting, a seizure, or confusion that keeps growing. Call 911 or go to the ER.
Frequently asked questions
Can I have a concussion if I did not hit my head?
Yes. Rapid movement of the head, such as in a rear-end collision, can injure the brain without direct impact. Only an evaluation can tell you whether a concussion is part of the picture.
Do I need testing if my CT scan was normal?
A normal CT helps rule out bleeding and structural injury. If symptoms persist, ask your treating provider whether standardized testing would help.
Who decides on care after testing?
Your treating provider. Braintree provides physician-reviewed diagnostic reports; the treating provider reviews the findings and decides on care.
We diagnose. You treat.
Mobile, physician-reviewed concussion and TBI diagnostics for Florida providers and their accident patients. Reports go to the treating provider, who decides care.
Book a 15-minute callRefer a patientOr call 813-709-3771
Sources
- CDC: Symptoms of mild TBI and concussion, including danger signs
- MedlinePlus (NIH National Library of Medicine): Concussion
- TRACK-TBI (Transforming Research and Clinical Knowledge in TBI), UCSF
This guide is educational and is not medical or legal advice. If this is a medical emergency, call 911.