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Symptoms
By Mayo Clinic staffFebrile seizure symptoms can range from mild — rolling of the eyes — to more severe shaking or tightening of the muscles.
A child having a febrile seizure may:
- Have a fever usually higher than 102 F (38.9 C)
- Lose consciousness
- Shake or jerk the arms and legs on both sides of the body
- Roll his or her eyes back in the head
- Have trouble breathing
- Lose urine
- Vomit
- Cry or moan
Febrile seizures are classified as simple or complex:
- Simple febrile seizures. These are the most common. They last from a few seconds to 10 minutes and stop on their own. After the seizure, your child may cry, act confused or be quite sleepy.
- Complex febrile seizures. A complex febrile seizure lasts longer than 15 minutes, occurs more than once within 24 hours or is confined to one side of your child's body.
Although a febrile seizure is usually caused by a rapid rise in your child's temperature, the severity of the signs and symptoms doesn't necessarily reflect the level of the fever.
