Newborns suddenly scream in their sleep for the following reasons: 1. Sudden stomach discomfort during the child’s sleep can appear as crying and screaming. If the usual good health, occasional seizures, usually do not need to deal with; 2, need to pay attention to the occurrence of neonatal encephalopathy, because neonatal encephalopathy may not have typical symptoms, can be manifested as screaming, crying, crying straight, to trace the child’s history of hypoxia during birth, as well as after birth there is no change in muscle tone, eating milk is not good. If you do have these symptoms, you need to go to the hospital promptly and have a cranial imaging or EEG. If the child is in good general condition, growing and developing well, and is put to sleep soon after waking up, and it does not happen frequently, it may be that the child wakes up suddenly or screams suddenly due to colic or other triggers at that time, and occasional attacks may not be a problem. Of course, it is still recommended to go to a professional hospital for professional consultation and judgment. If there is a problem, it should be treated promptly, because neonatal encephalopathy may have long-lasting adverse effects on the child in the future.