Arising from any accident that causes a violent movement of the head, a brain injury can range from mild to severe. Only a medical doctor can say for sure the extent of the damage, but sometimes this isn’t even known until the patient starts the recovery process.
After sustaining a blow to the head, no matter how insignificant at the time, you should seek medical attention. Even losing consciousness for one second is cause for alarm. Traumatic brain injury is different for everyone. You may experience nausea and confusion, or you may require hospitalization due to brain hemorrhage or seizure.