Generally insurance lawyers run searches on individuals who have been in wrecks to determine if they have ever been in injured before. The individuals who have been hurt never even know this search is done. Even if it happened years ago, the records remember and the insurance companies know about that medical treatment. Each body part is coded so if your neck or back hurt before, the insurance companies and the defense firms they hire can go and find those records.
Make sure you run a search on yourself so you know what the other side knows. If your lawyer doesn’t know how to run a Claims Index Bureau search on you, find another lawyer. You can get this search done very reasonably. Down load the form here: