Question

A child suddenly rolled their eyes back and clenched their hands, and at 1.5 years old, no cause was found during examination.

Answer

This condition in a child may be an epilepsy seizure, which is a clinical symptom caused by abnormal discharge of neurons in the brain. The characteristics include sudden and temporary convulsions or loss of consciousness. It is recommended to undergo an electroencephalogram (EEG) examination, and if diagnosed with epilepsy, treatment with phenytoin can be considered.