A burst of shortness of breath in newborns may be normal, or it may be caused by pneumonia, congenital heart disease and other diseases. 1. Normal: such as newborns in the milk, crying, may occur after shortness of breath, this is normal, usually after a period of time can be calmed down, do not need to carry out special treatment. 2. Pneumonia: shortness of breath may be caused by infections, such as acute upper respiratory tract infection, bronchitis, etc., and should be treated symptomatically. 3. Congenital heart disease: such as atrial septal defect, ventricular septal defect, arterial ductus arteriosus, tetralogy of Fallot, etc., due to the defect of part of the heart structure, so that the blood supply is abnormal, causing shortness of breath. Depending on the situation, it is necessary to decide whether surgery is needed at a later stage. Newborns with shortness of breath should seek prompt medical attention to identify the cause of the condition so that it can be treated early.