Babies always choke on milk to the old cough, there are physiological factors may also be disease factors. 1. Physiological factors. Breastfeeding posture is not correct, the baby cries when breastfeeding, too much breast milk, these situations can appear when eating milk choking and thus coughing. 2.Disease factors. (1) Respiratory tract infection. Whether it is upper respiratory tract infection or bronchitis and pneumonia, it can cause the baby to cough. (2) Allergies. Babies who are allergic to milk powder can develop an allergic cough, which can lead to choking and coughing. (3) Gastroesophageal reflux pyloric obstruction and other diseases. The milk can’t go down the esophagus smoothly when eating milk, so it’s easy to choke when drinking milk, which leads to coughing. In summary, the child must pay attention to the correct position when eating milk, to avoid choking phenomenon occurs, after eating milk to timely vertical hold, pat the back and burp, so that the treatment is still spitting up and coughing, to go to the local pediatric clinic in a timely manner to see a doctor.