The cause of a newborn crying for breath is mainly due to the temporary lack of oxygen caused when the child cries very violently. It is common in newborns whose children belong to the temperamental category, and if the child’s demands are not met in time, there will be violent crying, or due to severe hunger or pain, the child’s crying is also very violent. If the child cries very violently, the lung ventilation function will be temporarily inhibited, the lung ventilation function is not too smooth, the body will appear the performance of oxygen deprivation, will show that crying can not breathe, serious will cause the lips of the mouth blue. In this case, parents should promptly comfort the child and eliminate the cause of the child’s violent crying.