HI Thank for choosing HCM Seizures is symptom and not the disease it self, and this could happened due to the abnormal electrical activity of neurons inside the brain, often called convulsion in medical terms, It can be Epileptic convulsion, convulsion due to potassium, sodium disturbances (either Grandmal or petit mal) Febrile Convulsion (Pediatric Age group) Brain infection (Meningitis) also induces convulsion, the most common type of convulsion is generalized tonic clonic one (epilepsy), this can be occur at any age groups more common in male patients, newer drugs are available which gives very good results, all convulsions are being treated according to under laying cause, for epileptic seizures life long medicine required, ( Natural remission of seizures often noticed) Hope this will help you. good day.