• Focal demyelination of trigeminal nerve or ganglia
  • Extrinsic and intrinsic tumours near the branches of nerve.
  • Micro vascular compression due to blood vessel impinging on the root of trigeminal nerve.
  • Demyelination of trigeminal nerve fibres
  • Multiple sclerosis
  • Blood vessel disorders
  • Formation of cyst or cavity in the spinal cord
  • Sarcoidosis
  • Post-medullary infarction

Triggering factors –

  • Anxiety
  • Stress
  • Putting on makeup
  • Heavy traffic sounds and horns
  • Radiation from mobile towers