A subdural hematoma (SDH) is a form of traumatic brain injury in which blood collects between the dura (the outer protective covering of the brain) and the arachnoid (the middle layer of the meninges).

  1. Symptoms of subdural hematoma include the following:
  2. Loss of consciousness or fluctuating levels of consciousness
  3. Seizures
  4. Numbness
  5. Headache (either constant or fluctuating)
  6. Dizziness
  7. Disorientation
  8. Amnesia
  9. Weakness or lethargy
  10. Nausea or vomiting
  11. Personality changes
  12. # Inability to speak or slurred speech
  13. Ataxia, or difficulty walking
  14. Altered breathing patterns
  15. Deviated gaze, or abnormal movement of the eyes