Sudden convulsions in sleep may be caused by febrile convulsions, trace element deficiency, epilepsy, sleep jumping, or infantile spasms. It is necessary to go to the hospital promptly to determine the cause and treat the cause. Common causes and treatment 1, high fever convulsions: infants in early respiratory infections or other infectious diseases, temperature rise period may occur convulsions, the sudden occurrence of the whole body or local muscle groups of tonic, clonic convulsions, double eyeball gaze, squinting, straightening or upturning, with loss of consciousness symptoms. The first choice is Valium sedation to control convulsions. If convulsions persist, sodium phenobarbital or other drugs can be used to consolidate and maintain the efficacy; 2. Micronutrient deficiency: Calcium deficiency or vitamin D deficiency in children may cause convulsions, when convulsion symptoms last for a short time and there is no impairment of consciousness. Epilepsy: It is a chronic brain disease that causes sudden and unexplained seizures. Anti-epileptic drugs should be used in a timely manner as prescribed by the doctor to control seizures. Anti-epileptic treatment should be selected according to the form of seizures and EEG results; 4. Sleep startle: It is a short jerking seizure that occurs suddenly on one or both sides of the torso during the beginning of sleep. Most of them are caused by diet or emotional stimulation. Avoid giving the child stimulating foods such as caffeine as much as possible, which can have a certain alleviating effect on the convulsions caused by sleep jumping; 5. Infantile spasms: they occur mostly in infants before bedtime, during light sleep or just after waking up, mainly manifested as a sudden series of nodding and hugging-like spasms with short seizure duration. Follow medical advice to use hormonal drugs for treatment. Note: For infants with nighttime sleep convulsions, parents should pay attention to daily care while treating them and ensure that the affected children get enough sleep.