Five-year-old children can not breathe, consider the possibility of disease, such as bronchial asthma and other lung diseases; congenital heart disease, viral myocarditis and other heart diseases; leukemia, anemia and other blood system diseases. 1. Lung diseases: If you have bronchial asthma, you can experience symptoms such as wheezing, coughing and difficulty in breathing when you encounter allergens in the air. 2. Heart disease: most of the children with congenital heart disease are in poor physical condition, a little too much physical activity can lead to insufficient blood supply to the heart, so that the body lacks oxygen, appearing to gasp for air. Children with viral myocarditis have decreased exercise tolerance due to damage to the heart muscle, resulting in wheezing. When there is viral myocarditis, there are other symptoms such as fatigue, diarrhea, fever and so on. 3. Blood system diseases: such as leukemia, anemia, etc., the number of blood cells in the blood decreases, and the oxygen-carrying capacity also decreases, resulting in hypoxia, which is regulated by the body and shows the symptom of gasping for air. When children are found to have the symptom of gasping for breath, parents should bring children to the hospital for standardized diagnosis and treatment in time to avoid delaying the condition.