Night terrors is a small child sleep abnormal behavior, mainly manifested as the child will suddenly wake up and sit up after falling asleep, just like we have a nightmare, sometimes will shout, scream, cry, light symptoms is more easy to wake up, sleep is not solid, and there may be symptoms of excessive sweating. Some babies are caused by calcium deficiency, and may also have symptoms such as anorexia and partiality. If this situation occurs, it is recommended to go to the hospital for a relevant examination to clarify the diagnosis, take vitamin D with calcium tablets to regulate, and then pay more attention to participate in outdoor activities, more sunshine. If there is no relief in the short term, it may also be caused by immaturity of the nervous system, we must go to the regular hospital in time, complete the relevant examination and choose reasonable treatment, do not misdiagnosis, do not delay the condition.