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First Aid Guides

Seizure - Febrile convulsions

Causes, signs and symptoms

What can cause a seizure?

Febrile convulsions happen when there is a rise in body temperature.

The rise in body temperature can be at least 1.5ºC above the normal range - which is 36.5°C to 38°C.

The fever is usually due to a viral illness or, sometimes, a bacterial infection.

Symptoms of febrile convulsions

The symptoms of febrile convulsions include:

  • Falling unconsciousness
  • Muscle stiffening, twitching or limb jerking
  • Breathing difficulty
  • Foaming at the mouth
  • Pale or bluish skin colour
  • Eyes rolling upwards