Back pain is a very common injury sustained from car accidents. Car accidents cause an immense amount of pain on the lower back, neck, and upper body. Since the velocity of a moving car is stopped by an opposing force of another car, it can cause a reverb in the body. This reverb can cause soreness, strain, and fractures to the back. An important thing to remember is even if you do not think you have suffered any injuries, bak problems could arise in the future. Always get checked by a medical professional to review and assess your injuries.