One of the most common causes of whiplash in a car accident is a rear end collision. If you are stopped at a traffic light and are hit from behind, you probably are not expecting it. There might be only minor damage or none at all. But you still may feel pain in the upper back and neck. Or, you may have a headache or feel dizzy. But the next day, you could feel a lot of stiffness and pain in your neck. Why did this happen?
When you are sitting in the car, usually your head is right over your shoulders. But when you are hit from behind, the impact is unexpected, and your torso will move in one direction, but your head will not follow right away; it will go in the other direction. The torso will snap against the seat back and your head when be yanked back. So, there are two times in a rear end crash where the neck may be hyperextended. This may cause you serious pain immediately or it may take a few hours or days to appear. Regardless, you should be seen by a doctor as soon as possible to confirm if you have whiplash.