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Disease or Condition — Injuries and Poisoning:
mild traumatic brain injury

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A concussion is a type of traumatic brain injury caused by a bump, blow, or jolt to the head that can change the way your brain normally works. Symptoms of a concussion can include headache, confusion, dizziness, nausea, vomiting, fatigue, difficulty concentrating, and sensitivity to light and noise. If you suspect you or someone else has a concussion, it is important to seek medical attention right away.

  • concussion
Symptoms (patient's findings)
  • concentration difficulty
  • coordination abnormality
  • dysphasia
  • fainting
  • headache
  • insomnia
  • lack of coordination
  • learning difficulty
  • nausea
  • tinnitus
  • unsteadiness on feet
  • vomiting
Signs (examiner's findings)
  • coma
  • disorientation
  • transient alteration of awareness

Detailed Disease and Condition Information (use the search buttons below to find details on these topics)
All of the following must be considered when interpreting clinical findings and are too extensive to be covered on this site: