Snoring, also known as snoring, snoring, is very common in life, is due to sleep after the breathing airflow is not smooth and lead to a class of diseases, serious in the medical called a special sleep apnea hypoventilation syndrome. The direct cause of snoring is the narrowing or obstruction of the respiratory tract causing poor airflow, and the causes of the narrowing or obstruction of the respiratory tract are mainly the following three types, of which tonsils or adenoids hypertrophy cause snoring in young children is more common. The first category is the central cause. We all know that breathing and heartbeat are controlled by the nerve center, that nerve center if the control of abnormalities, throat muscle relaxation, tongue sliding back, will block the airway, snoring. This is more common in infants and young children, especially premature babies, because the nervous system is not well developed. Adults, especially post-stroke, used not to snore, but began to do so after they became ill, mostly because of this reason. The second category is obstructive causes. It is caused by narrowing of the airway in the nose, throat and pharynx, such as nasal obstruction due to rhinitis, enlarged turbinates, enlarged tonsils or adenoids, and tumors in the throat, which can lead to narrowing of the airway and cause snoring to occur. The third category is mixed causes, which include both of the above factors to cause snoring to occur. Therefore, there are many reasons that can cause snoring. The most common cause of snoring in infants and children is tonsillar or adenoid hypertrophy, and more serious snoring can affect the growth and development of infants and children, so timely consultation is needed to clarify the cause and take corresponding treatment measures.