What Causes Febrile Seizures in Children?

Febrile convulsions in children are medically termed “febrile seizures.” These occur primarily because infants’ and young children’s nervous systems are still immature—for instance, the cerebral cortex has relatively poor inhibitory function, and myelination of nerve fibers is incomplete. Consequently, external stimuli can easily trigger excessive neuronal excitation that spreads rapidly, leading to seizures. Febrile seizures generally fall into two categories:

1. Febrile seizures: These predominantly affect children aged 6 months to 5 years. They typically occur at the onset of fever—either just before or shortly after the fever begins—and usually manifest as a single episode lasting from several seconds to several minutes, rarely exceeding 5–10 minutes. Even if such seizures recur occasionally, their impact on cognitive development is generally minimal.

2. Encephalitis: This is comparatively more severe but clinically rare. Children with encephalitis may experience seizures during fever; these seizures tend to be more severe and difficult to control. Additionally, affected children often display lethargy or altered mental status. Clinical examination by a physician typically reveals abnormal neurological findings.

If a febrile seizure occurs at home, immediate first-aid measures include applying firm pressure to the *Renzhong* (GV26) acupoint and the *Hegu* (LI4) acupoint, turning the child’s head to one side to prevent aspiration, and initiating physical cooling methods—such as applying an ice cap, ice pack, or cold compresses to the head to lower brain temperature and protect neurons. Warm-water sponging of the axillae and groin areas may also aid in physical cooling. If rectal antipyretic medication is available at home, it may be administered rectally per instructions. After completing these initial interventions, promptly transport the child to a clinic or hospital for further evaluation and treatment.