If you are injured in a car accident and are receiving medical treatment, the at fault insurance company may ask you to sign a medical authorization form so that they may have access to all of your medical records since birth.
Do not sign ANY medical authorization forms from the insurance company.
The insurance company can use this information to deny or reduce your personal injury claim. Also, if you go to court, the insurance company may try to hire a medical professional that will testify that a pre-existing condition is the cause of your current problem.
If you have been seriously injured in a car accident, you may need a car accident lawyer to get you the medical treatment you need and get your medical bills paid.