If a child has intentional backward breathing, the following aspects need to be considered. First, is the lung disease, if the child has a cough, nasal congestion, runny nose and other respiratory infections in recent times, may appear backward breathing, need to give the child active treatment of respiratory infections, after the infection control, this symptom will be significantly improved. Second, myocardial damage, if the child has a respiratory infection, appeared backward breathing, need to conduct electrocardiogram, cardiac enzyme test or cardiac ultrasound examination. The presence of elevated cardiac enzymes and electrocardiogram changes should be considered as a result of myocardial injury. If the myocardial lesion is likely to cause regurgitation, the child needs to be treated with drugs that nourish the heart muscle, such as sodium fructose diphosphate or sodium creatine phosphate. Third, is the child’s bad habits, need to exclude the heart and lung disease, in order to be able to diagnose this disease. For some children with bad habits, they need to be corrected slowly, and parents should praise and encourage their children as much as possible to avoid scolding and blaming. If the symptoms are prolonged, it is also necessary to consider whether it is an early manifestation of Tourette’s syndrome, or the type of tic disorder manifested.