Pain and soreness are expected following a car accident, as the body is subjected to trauma and often brute force during a collision. Many injuries heal over time, but some can lead to extended periods of pain, such as the following:nBrain injuries: Brain injuries are common in car accidents, either from your head striking an object or something in the car thrown against your head during the crash. The CDC estimates that 20 percent of all traumatic brain injuries occur in car accidents. Traumatic brain injuries are serious emergencies that need treatment as soon as possible. If you have continued throbbing or stabbing headaches, seek emergency medical treatment, especially if you still have the pain several days after the accident.nWhiplash: Whiplash is a very common injury in rear-end accidents. The crash's impact sends your seat forward while your head and neck are braced back in the seat, but as the car moves forward, your head and neck are suddenly thrust forward. The violent movement causes tearing-type injuries to the muscles and tendons in your head, back, and neck, resulting in herniated discs.