Newborns choking on milk may be caused by improper feeding, digestive tract abnormalities, cerebral palsy and so on. 1. Improper feeding: the newborn may be too hungry to breastfeed, the newborn is often hungry to eat milk faster, will inhale a lot of air, thus causing choking phenomenon. The gastrointestinal tract of the newborn is not yet well developed, and it is also possible that when feeding the newborn, the newborn is in a flat state, which can easily cause choking. 2. Gastrointestinal malformation: It is a kind of congenital malformation that causes the esophagus and trachea of infants to be connected, so that the milk will go into the trachea through the connected part during breastfeeding, which will lead to milk choking. 3. Cerebral palsy: it may be a congenital abnormality of brain development, or it may be caused by lack of oxygen, which leads to abnormal swallowing function of newborns causing choking. Newborns always choking, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.