In life it often happens that children suddenly appear convulsion performance. Once the child has a convulsion, parents will show panic, and once the convulsion occurs the child also has a certain degree of life risk, so it is necessary to rescue and treat as soon as possible, causing many causes of pediatric convulsions, today introduced several common causes of pediatric convulsions. Pediatric convulsions are commonly caused by two major categories, one is infectious diseases, and the other is non-infectious diseases. In principle, any pathogen infecting the intracranial tissues will cause the occurrence of convulsions. The more common ones are bacterial meningitis, brain abscess, viral meningitis, viral encephalitis, and the less common ones are tuberculous meningitis, intracranial venous sinusitis, and occult bacterial meningitis. When extracranial infections occur such as respiratory tract infections, gastrointestinal tract infections, and urinary tract infections can also cause convulsions, and common diseases include sepsis, early childhood emergencies, scarlet fever, and urticaria. Intracranial non-infectious diseases are commonly epilepsy, intracranial hemorrhage, brain abscess, central nervous system malformation, demyelinating disease and acute cerebral edema. Extracranial non-infectious diseases are mainly seen in diseases of various systems of organs, genetic metabolic diseases such as galactosemia, hypoglycemia, asphyxia, disorders of water and electrolyte acid-base balance, such as water intoxication, hyponatremia, hypernatremia, hypocalcemia, carbon monoxide poisoning and poisoning by various drugs, which can also cause convulsions. In short, pediatric convulsions are a relatively critical symptom, and once they occur, parents must take their children to the doctor as soon as possible to clarify the cause of the convulsions and actively treat the original disease.