Seizures are short, sudden jerky movements of the muscles that cannot be controlled. When these seizures are caused by fever, they are called febrile seizures.

A febrile seizure is a seizure in a child that can be caused by an increase in body temperature, often from an infection. The fact that your child has a febrile seizure can be alarming, and the few minutes it lasts can seem like an eternity.

Febrile seizures represent a unique response of a child’s brain to fever, usually on the first day of fever. Fortunately, they are generally harmless and generally do not indicate an ongoing problem. You can help by keeping your child safe during a febrile attack and comforting him afterward.


Febrile symptoms of seizures can range from mild – staring to more severe tremors or tightening of the muscles.

A child with a febrile seizure may:

Has a fever over 38.0 C Losing consciousness Shaking or shaking arms and legs

Febrile seizures are classified as simple or complex:

    Simple febrile seizures This most common type lasts from a few seconds to 15 minutes. Simple febrile seizures do not recur within a 24-hour period and are generalized, not specific to one part of the body.

    Complex febrile seizures. This type lasts more than 15 minutes, occurs more than once within 24 hours, or is confined to one side of your child’s body.

Febrile seizures most often occur within 24 hours of the onset of fever and can be the first sign that a child is sick.

When to see a doctor

See your child’s doctor as soon as possible after your child’s first febrile seizure, even if it only lasts a few seconds. Call an ambulance or go on your own to take your child to the emergency room if the seizure lasts more than 5 minutes or is accompanied by:

  •     Threw up
  •     Neck stiffness
  •     Respiratory problems
  •     Extreme drowsiness
  • Causes
  • A high body temperature causes most febrile seizures.
  • Infection

Typically, the fevers that trigger febrile seizures are caused by a viral infection, less often by a bacterial infection. Viral infections, such as the flu and roseola, which are often accompanied by a high fever, seem to be more related to febrile seizures.

Adverse reactions after vaccination

The risk of febrile seizures may increase after some childhood immunizations, such as the diphtheria, tetanus, and whooping cough or measles, mumps, and rubella vaccines. A child may develop a low fever after vaccination. The fever, not the vaccine, causes the seizure.

Fever seizure What to do?

Disbalance between excitatory and inhibitory neurotransmitters. Hyperthermia (> 38.3º C) can cause a decrease in the levels of GABA receptors at the pre- and post-synaptic level, generating a positive balance in favor of excitatory neurotransmission.

Exaggerated response to certain pro-inflammatory cytokines. Interleukin 1b (IL-1b) can cause seizures by exerting changes in phosphorylation of the N-methyl-D-aspartate receptor, inhibiting astrocytic reuptake of the excitatory neurotransmitter glutamate and increasing its release by glial cells and other neurons.

Respiratory alkalosis. The increase in respiratory rate caused by fever could cause respiratory alkalosis and may increase neuronal excitability.

Risk factor’s: Factors that increase your risk of having a febrile attack include:

Early age. Most febrile seizures occur in children between 6 months and 5 years of age. It is unusual for children younger than 6 months to have febrile seizures, and it is rare for these seizures to occur after 3 years of age.

Family history. Some children inherit a family’s tendency to have seizures with a fever. Additionally, researchers have linked several genes to a susceptibility to febrile seizures.


Most febrile seizures do not have long-lasting effects. Simple febrile seizures do not cause brain damage, mental retardation, or learning disabilities, and they do not mean that your child has a more serious underlying disorder.

Febrile seizures do not indicate epilepsy, a tendency to have recurring seizures caused by abnormal electrical signals in the brain.

Recurrent febrile attacks

The most common complication is the possibility of more febrile attacks (that become more recurrent). The risk of recurrence is higher if:

  •     Her son’s first seizure was the result of a low fever.
  •     The period between the onset of the feb laughed and the attack was brief.
  •     An immediate family member has a history of febrile seizures.
  •     His son was less than 15 months old at the time of the first febrile seizure.


Most febrile seizures occur in the first hours of fever, during the initial rise in body temperature.

Give your child medicine

Giving your child acetaminophen or ibuprofen at the start of a fever may make your child more comfortable, but it will not prevent a seizure.

Be careful when giving aspirin to children or adolescents. Although aspirin is approved for use in children older than 3 years, children and adolescents recovering from chickenpox or flu-like symptoms should never take aspirin. This is because aspirin has been linked to Reye’s syndrome, a rare but life-threatening condition, in such children.

Prescription prevention drugs

In rare cases, prescription anticonvulsant medications are used to try to prevent febrile seizures. However, these drugs can have serious side effects that can outweigh any possible benefits.

Oral diazepam, lorazepam intensol, clonazepam, or rectal diazepam may be prescribed for children prone to febrile seizures. These medications are generally used to treat seizures that last longer than 10 minutes or if the child has more than one seizure in 24 hours. They are not generally used to prevent febrile seizures.


Identifying the cause of your child’s fever is the first step after a febrile seizure.

Simple febrile seizures

To determine the cause of the infection, health personnel may recommend:

    A blood test

    A urine test

    A spinal tap (lumbar puncture) to find out if your child has a central nervous system infection, such as meningitis

 Complex febrile seizures.

For complex febrile seizures, your doctor may also recommend an electroencephalogram (EEG), a test that measures brain activity.

If the seizure involved only one side of the child’s body, your doctor may also recommend an MRI to monitor your child’s brain.


Most febrile seizures stop on their own within a couple of minutes. If your child has a febrile seizure that lasts more than 10 minutes, or if your child has repeated seizures, seek emergency medical attention.

More serious episodes

If the seizure lasts longer than 15 minutes, a doctor may order medicine to stop the seizure.

If the seizure is prolonged or accompanied by a severe infection, or if the source of the infection cannot be determined, your doctor may want your child to remain in the hospital for further observation. But a hospital stay is generally not necessary for simple febrile seizures.

Lifestyle and home remedies

If your child has a febrile seizure, stay calm and follow these steps:

  •     Place your child on his or her side on a surface where he or she will not fall.
  •     Stay close to watch and comfort your child.
  •     Remove hard or sharp objects around your child.
  •     Loosen tight or restrictive clothing.
  •     Do not restrain your child or interfere with your child’s movements.
  •     Do not put anything in your child’s mouth.
  •     Watch the time of the seizure
  • Getting ready for your date

You will likely start by seeing your child’s GP or pediatrician. You can then refer to a doctor who specializes in disorders of the brain and nervous system (neurologist).

Here is information to help you prepare for your appointment.

What you can do

Write another to remember everything you remember about your child’s seizure, including signs or symptoms that occurred before the seizure, such as fever. Make a list of the medications, vitamins, and supplements your child takes. ask your doctor.

For febrile seizures, some basic questions to ask your doctor include:

  •     What is the most likely cause of my child’s seizure?
  •     What tests does my child need?
  •     Do these tests require special preparation?
  •     Is this likely to happen again?
  •     Does my child need treatment?

    Will fever-reducing medications help prevent my child from having a febrile seizure during illness?

    What should I do the next time my child has a fever?

    What can I do to help my child during a febrile seizure?

My son has another health condition.

    How can we manage them together?

    Are there brochures or other printed material that I can take?

     What websites do you recommend?

Do not hesitate to ask other questions, you are also in the right place and time.

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