Key takeaways
- A clean scan is not a clean bill of health. Standard imaging is looking for bleeds and fractures. Most people with lasting symptoms after a head injury have unremarkable scans.
- Mild describes the first hours, not the outcome. The classification comes from a bedside score. More than 70 percent of brain injuries are graded mild, and a share of those people do not fully recover.
- The case is a before-and-after argument. What you could do before, what you can do now, and evidence connecting the gap to the injury. That is the whole structure.
- Your baseline is contested territory. Cognitive testing compares you to an expected score. How that expectation is set has been litigated at the highest levels of professional sport.
This guide is written and reviewed by our editorial team to be accurate and current. It is general information, not legal advice, and reading it does not create an attorney-client relationship. It is also not medical advice, and nothing here should be used to decide whether to seek care. If you have hit your head and have worsening headache, repeated vomiting, confusion, seizures, or weakness, seek emergency care now or call 911.