As the nasopharynx of children is relatively small, when adenoid hypertrophy, due to nasal congestion affects breathing and mouth breathing, long-term mouth breathing, airflow impact on the hard palate will make the hard palate deformation, high arch, over time, facial development will be deformed, the upper lip is short and thick, the lower jaw sagging, nasolabial groove disappeared, hard palate high arch, teeth alignment is not neat, upper incisors protrude, poor bite, nasal septum flattening, etc., facial muscles are not easy to move, lack of expression. The hard palate is high arched, the teeth are not aligned, the upper incisors are prominent, the bite is poor, the nasal septum is flattened, etc. The facial muscles are not easy to move, lack of expression, looks like a piggyback or ugly duckling, medically called “adenoid face”. The adenoid hypertrophy in children can cause blockage of the nose, resulting in the backflow of nasal snot to the pharynx, stimulating the mucous membrane of the lower respiratory tract, often causing bouts of coughing and making them susceptible to bronchitis. Children with adenoid hypertrophy are prone to mental depression and unresponsiveness. Children with adenoid hypertrophy are likely to suffer from ischemia and hypoxia in the head due to long-term mouth breathing and lack of ventilation in the nose, resulting in mental depression, headache, dizziness, memory loss and unresponsiveness. As children need a lot of oxygen for development, snoring will make children seriously lack of oxygen during sleep, which will directly lead to the lack of oxygen supply for brain development and reduce the secretion of growth-promoting hormone, which will not only affect the height of children, but also reduce the body resistance, and will affect the intelligence of children in the future. Therefore, such children are not only prone to respiratory infections, but also prone to chicken chest, funnel chest, and even induce pulmonary heart disease. Therefore, children snoring has more harm than adults.