Children with sudden convulsions while sleeping should pay attention to the lack of calcium and vitamin D, epilepsy or other diseases causing them. Parents should take their children to the hospital for examination of infection indicators, head imaging, electroencephalogram, cerebrospinal fluid, etc., and if necessary, genetic and metabolic diseases and other related examinations to clarify the cause and then carry out targeted treatment according to the specific causes. Common causes and treatment 1, lack of calcium and vitamin D: If the child lacks calcium and vitamin D in the body, resulting in the symptoms of sudden convulsions during sleep. You need to take oral calcium and vitamin D preparations under the guidance of a doctor, and you can also eat more calcium-rich foods such as shrimp and kelp in your daily diet, and enhance physical exercise and sun exposure; 2. Epilepsy: often accompanied by the symptoms of closed teeth and upturned eyes, you need to consider the possibility of epilepsy, you need to go to the hospital to improve the relevant examination, and after diagnosis, you can give anti-epileptic drugs to control the symptoms, such as carbamazepine, etc. Frequent seizures or seizures with severe symptoms also require surgical treatment; 3. Other: intracranial infections, intracranial tumors, intracranial parasites, central nervous system infections, drug and food poisoning, electrolyte disorders, periodic limb movement disorders or other rare genetic and metabolic diseases can also lead to sudden convulsions in children’s sleep and should be promptly treated according to the cause by seeking medical attention to clarify the cause. Parents should let their children drink more milk or bone broth to replenish calcium and get more sunlight. If the convulsions are more serious, they need to go to the emergency room in time, and pay attention to avoid falling and trauma and biting the tongue.