After a car accident, your injuries may not show up immediately. However, if you are still experiencing pain a few days after the collision, visit your medical provider to ensure you have not sustained any serious harm. Some of the most common injuries that occur in rear end accidents include: Brain injury (concussions, hematomas, etc.) Soft tissue damage Neck and back pain Whiplash Torn ligaments Spinal cord injury The severity of your injuries can depend on many factors, such as the speed at which the at fault driver hit you, and what kind of vehicles (cars, semi trucks, buses, etc.) were involved.