Children who say they can’t catch their breath can be caused by respiratory diseases, heart diseases and other reasons. 1. Respiratory diseases: such as colds, pneumonia, bronchitis, asthma and other diseases, can lead to discomfort in the child’s throat, nasal congestion, resulting in poor breathing, resulting in the child gasping for air. It may also be accompanied by cough, fever and other symptoms. 2. Heart disease: common in congenital heart disease, myocarditis, valvular disease, etc., due to insufficient cardiac output, may cause chest tightness, shortness of breath, resulting in the child said breathless. The child said breathlessness, 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, to give targeted treatment or treatment.