Table 1.

Clinical characteristics of different types of febrile seizures

	Simple febrile seizure (SFS)	Complex febrile seizure (CFS)
Type of seizure	Generalized seizures with short duration, usually lasting a few seconds to several minutes.	Seizures last more than 15 minutes and may present as partial seizures or multiple episodes.
Fever characteristics	Typically associated with high fever (≥38°C/100.4°F), often caused by upper respiratory tract infections or other infectious diseases.	May develop with low-grade fever or without significantly high temperatures.
State of consciousness	Children often experience unconsciousness or confusion during the episode.	Children may show alterations in consciousness, appearing dull, sluggish, or displaying psychiatric disorder.
Systemic features/local features	Limb convulsions, tonic-clonic seizures, or paroxysmal seizures affecting the entire body.	Partial seizures, involving specific body part, such as the face or limbs, rather than generalized convulsions.
Prognosis	Generally favorable, with rare occurrence of neurological sequelae.	Relatively poorer prognosis, possibly associated with underlying nervous system abnormalities or other conditions.