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how to tell if a headache after a car accident is whiplash or a concussion and who to see

Reviewed by operators of The Joint Chiropractic Rosemead — a licensed chiropractic clinic. Not individually reviewed per response; not medical advice.
Educational information only — always confirm with a licensed provider.
Short answer

Headaches after a car accident often overlap, but whiplash typically involves dull, aching pain radiating from the neck to the base of the skull, while a concussion involves cognitive symptoms like confusion, light sensitivity, or nausea. Because both conditions frequently occur together, you should see a healthcare provider for a neurological and physical evaluation immediately following any high-impact collision.

Short answer

Headaches after a car accident often overlap, but whiplash typically involves dull, aching pain radiating from the neck to the base of the skull, while a concussion involves cognitive symptoms like confusion, light sensitivity, or nausea. Because both conditions frequently occur together, you should see a healthcare provider for a neurological and physical evaluation immediately following any high-impact collision.

Most likely causes

  • Cervicogenic Headache: Pain originating from injured soft tissues or joints in the cervical spine (neck) that "refers" pain to the head.
  • Traumatic Brain Injury (TBI): A concussion caused by the brain shifting inside the skull, even if you did not hit your head directly.
  • Muscle Tension: Spasms in the trapezius and suboccipital muscles resulting from the "whip" motion of the accident.
  • Vascular Strain: Stretching of the blood vessels or nerves in the neck during the rapid acceleration-deceleration movement.
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