A<unk> , also known as a fever fit or<unk>  convulsion, is a seizure associated with a high body temperature but without any serious underlying health issue.<unk> s affect 2–10% of children and are more common in boys than girls. They most commonly occur in children between the ages of 6 months and 5 years although some authorities suggest that the age range should include those down to 1 month. Most seizures last less than five minutes, and the child typically recovers quickly. There are two types: simple<unk> s and complex<unk> s. Simple<unk> s involve an otherwise healthy child with a single, tonic-clonic seizure lasting less than 15 minutes. Complex<unk> s have one of more of the following: focal symptoms such as jerking of only one side of the body, duration of > 15 minutes, or 2 or more seizures within 24 hours. About 60-70% are classified as simple<unk> s and 30-40% complex.<unk> s are triggered by fever, typically due to a viral infection. The underlying mechanism is not fully known, but it is thought to involve genetics, environmental factors, brain immaturity, and inflammatory mediators. The diagnosis involves verifying that there is not an infection of the brain, there are no metabolic problems, and there have not been prior seizures that have occurred without a fever. Blood testing, imaging of the brain, or an electroencephalogram (EEG) is typically not needed. Examination to determine the source of the fever is important. In otherwise healthy-looking children a lumbar puncture is not necessarily required. After a single<unk>  there is an approximately 35% chance of having another one during childhood. Neither anti-seizure medication nor anti-fever medication are recommended in an effort to prevent further<unk> s. Efforts to rapidly cool the child’s body during a seizure have not been extensively studied but are not recommended. Home use of a benzodiazepine (diazepam, lorazepam or midazolam) at the time of subsequent fevers may be considered for children with an initial prolonged<unk> . The long term outcome of children with<unk> s is generally excellent with similar academic achievements to other children. There is strong evidence that children with<unk> s have a slightly increased risk of epilepsy at 2-3% compared to the general population risk of about 1%.
Febrile seizure
Metabolic disorder
Reflex seizure
Meningitis
Musicogenic seizure
Non-epileptic seizure
Gelastic seizure
Focal seizure