Snoring, also known as snoring, snoring, baby sleep snoring is also more common, but this is the baby sleep after the whistling airflow is not smooth and lead to a class of diseases, medical snoring with serious sleep whistling repeatedly interrupted called sleep apnea. The direct cause of snoring is because the narrowing or obstruction of the inspiratory tract caused by poor inspiratory flow, and the causes of narrowing or obstruction of the inspiratory tract are mainly the following three categories, of which tonsils or adenoid hypertrophy is the more common cause of snoring in young children. First, central causes. Whistling is controlled by the nerve center, the nerve center if the control of abnormalities, resulting in throat muscle relaxation, tongue root back, will block the airway, thus appearing to snore. This is more common in infants and young children, especially premature infants, because of the imperfect development of the nervous system. Adults, especially post-stroke patients, may not snore before, but after the disease began to snore, but also more because of this reason. Second, obstructive causes. From the nose, pharynx and throat airway narrowing factors, such as nasal obstruction due to rhinitis, nasal turbinate hypertrophy, tonsil or adenoid hypertrophy, throat tumors, etc., can lead to airway narrowing, resulting in snoring. Third, mixed causes, including both of the above factors lead to snoring appear. So, there are three main types of causes that can cause snoring, of which the most common cause of snoring in babies is tonsillar or adenoid hypertrophy. Severe snoring can affect the growth and development of infants and young children and requires timely consultation to clarify the causative factors and take appropriate treatment measures.