Infantile convulsions before bedtime can be physiological or caused by pathologic factors such as epilepsy or calcium deficiency. If the convulsions are frequent, it is recommended to go to the hospital for diagnosis and treatment. 1. Physiological convulsions: Because the nervous system of newborns is not yet mature, there may be convulsions before going to sleep, which are benign myoclonus manifestations. This is a benign form of myoclonus, which will be gradually relieved as the nerves mature. 2. Pathological convulsions: if, in addition to pre-sleeping convulsions, it is common to see infants nodding their heads uninterruptedly or suddenly stopping their movements during activities, we should be alert to the possibility of epilepsy, and we suggest that they be screened by EEG, and if they are caused by epilepsy, they should undergo anti-epileptic treatment. Calcium deficiency can also cause convulsions, usually accompanied by excessive sweating and occipital baldness, etc. Blood biochemistry tests should be performed, and sun exposure and vitamin D supplementation should be provided. It is recommended to consult a doctor in time for a clear diagnosis and timely treatment to avoid delaying the treatment time.