Frequent sneezing in newborns can be a physiological phenomenon, such as sudden changes in the newborn’s environment, including cold air, bright light exposure, and irritating odors, which can cause frequent sneezing in newborns. It can also be seen in pathological changes, including colds, allergies, abnormal nasal development, etc., which can lead to repeated sneezing in newborns, and prompt medical attention is recommended. Common causes include: 1, cold: newborns are premature, or due to the mother’s lack of nutrition during pregnancy, lack of breastfeeding and other reasons, resulting in the newborn’s lack of resistance, poor health, vulnerable to external pathogens, resulting in recurrent colds, upper respiratory tract infections, causing sneezing, runny nose, nasal congestion, choking and other symptoms, may also be accompanied by shortness of breath, blue lips, etc., and in serious cases can lead to breathing difficulties. 2, allergies: if the environment in which the newborn is located contains pollen, dust mites and other allergenic substances, it is very easy to cause allergies in newborns, usually manifested as sneezing, runny nose, wheezing, coughing and other symptoms; 3, abnormal nasal development: congenital nasal septal deviation, nasal polyps, or inadvertently placed foreign objects in the nasal cavity resulting in nasal infection, can cause sneezing, can be accompanied by nasal bleeding; 4, gastroesophageal reflux: newborns The digestive system is immature, and after feeding on milk, gastrointestinal reflux is likely to occur into the throat or even the mouth, which can cause sneezing in mild cases and choking and vomiting in severe cases. Therefore, parents should pay attention to the frequent sneezing of newborns and identify the cause in time.