Whether it is normal for a newborn baby to breathe loudly or not is determined by the baby’s accompanying symptoms, which are divided into normal and abnormal, as follows: I. Normal: If a baby is born breathing loudly and is aggravated when lying down, breastfeeding or crying, it is caused by poorly developed laryngeal cartilage and is a normal physiological phenomenon. With the development of the baby, the phenomenon of loud breathing will slowly disappear, parents do not need to worry. If the baby was born normal and the phenomenon of loud breathing has only recently appeared, parents are advised to observe whether there are dry boogers in the baby’s nasal cavity. If there are dry boogers is normal, softened with saline, sucked out with a nasal aspirator, the phenomenon of loud breathing will also improve. Second, abnormal: If there is no boogers, consider that the baby has a cold, due to congestion and edema of the mucous membrane of the nasal cavity, resulting in the narrowing of the breathing channel and the symptoms of large breathing sounds, which is a pathological phenomenon and should take the baby to the hospital for consultation.