Newborns sleep at night is always struggling and grunting can be seen in physiological phenomena, pathological conditions (such as constipation, etc.), whether it is normal need to be analyzed specifically, such as for several days without stool or defecation difficulties is considered abnormal. 1. Physiological phenomenon: such as newborns in the night sleep, can appear the above performance, is a normal physiological phenomenon, usually such babies have no obvious abnormal symptoms. At night, the surrounding environment temperature is high, or the blanket is too thick, causing discomfort to the baby, may appear at night sleep always struggling to whine phenomenon, is a normal reaction, adjust the temperature and reduce the blanket can be appropriate. 2. Pathological conditions: such as constipation of the newborn, constant days without defecation, or defecation difficulties, abdominal discomfort, abdominal distension and other manifestations of such a situation is considered abnormal, the need to intervene when necessary. It is recommended to consult a specialist for evaluation if necessary.