Babies choking on food to the trachea and lungs performance are mainly crying, coughing, dyspnea, etc., the specific analysis is as follows: 1. crying: babies choking on food to the trachea and lungs will be very uncomfortable, usually crying phenomenon. 2. Cough: when there is food into the baby’s trachea or lungs, the baby will have a strong cough performance, if the cough is relatively short, there is food being discharged, may be choking into the trachea, if the cough is very long, or repeated coughing, there may be aspiration pneumonia. 3. Difficulty in breathing: when the baby coughing may have the symptom of breath-holding, a long time may cause hypoxia, causing difficulty in breathing. Babies choking on food to the windpipe may also have other manifestations, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.