It is essential that you provide the doctor with a complete history concerning the accident and the onset of your medical problems. In other words, you should explain what happened, how you were injured, your complaints or symptoms and any other relevant information. The data you provide to a doctor or emergency room attendant not only assists with the diagnosis and treatment of your injuries but establishes a record to document your injuries, the need for treatment, and the appropriateness of care for insurance claim purposes. In some cases, medical records ultimately become evidence which can be offered to prove damages you suffered as a result of a motor vehicle accident.