Babies choking all the time may be caused by physiological factors, congenital malformation of the digestive tract, pneumonia, cerebral palsy and Down’s syndrome. 1. Physiological factors: due to the imperfect development of the infant’s nervous system, parents feed the baby too fast or inappropriate posture, which will lead to frequent choking of the baby, after eliminating the above reasons can be improved on their own. 2. Congenital malformation of the digestive tract: when there is a congenital malformation of the digestive tract, it may cause the trachea and esophagus to be connected, and after drinking milk, the milk may enter the trachea through the connected part, which may easily cause choking. 3. Pneumonia: It may be related to viral and bacterial infections, which may cause infections in the lungs, leading to frequent choking of the baby, which may be accompanied by fever, cough and phlegm. 4. Cerebral palsy and Down’s syndrome: when the infant has cerebral palsy or Down’s syndrome, it may cause the infant’s sucking ability to deteriorate, often choking on milk, and may be accompanied by abnormal intellectual development. If physiological factors are ruled out, it is recommended that the infant be examined and treated as soon as possible to avoid other complications.