Car accidents can cause serious injuries, some of which may not be apparent at the moment the accident occurs. It is not uncommon for Pennsylvania drivers to first experience the symptoms of a physical injury after several days have passed. Headaches, for example, might develop several days after a motor vehicle accident, and could indicate serious problems in some cases. Among the other common symptoms that develop later are back pain, personality changes, numbness, and shoulder or neck stiffness or pain.
In more than half of rear-impact car accident injury cases, injured parties report pain in the lower back. Lower back pain is reported in almost three-quarters of side-impact crashes that result in injuries. People who experience changes in personality days after a crash may have suffered a traumatic brain injury. Signs of TBI include impaired memory, thinking, movement, depression, problems with hearing or vision and personality changes. According to the Centers for Disease Control and Prevention, car accidents are the third leading cause of TBI in the U.S.