Snoring is more common in children Sleep apnea syndrome in children is actually a common and frequent disease in pediatrics, which is many times underdiagnosed and misdiagnosed due to lack of attention. Children have a greater problem in sleep disorders, and according to epidemiological surveys, 27% of children aged 2-5 years old snore abroad. Children under 5 years old have more symptoms at night; severe snoring and open-mouth breathing with apnea, sleep disturbance, night terrors and night crying. Children older than 5 years old may show abnormal personality and behavior, decreased academic performance, decreased attention span, headache and dry mouth in the morning. Some children may develop ear symptoms, such as hearing loss. Children with OSAS need treatment Only a small percentage of children who snore have obstructive sleep apnea hypoventilation syndrome (OSAS). The latter is in need of timely treatment and intervention, otherwise it will affect their intelligence and height in the long run. However, the differentiation between simple snoring and OSAS requires an evaluation by an ENT specialist and an all-night polysomnography (PSG), which is the gold standard for diagnosing OSAS in children. Snoring in children is different from that in adults In recent years, the problem of sleep disorders in children has attracted more and more attention from pediatricians, and it is believed that most cases are caused by incomplete obstruction of the upper airway resulting in poor ventilation, snoring and abnormal respiratory movements. Obstructive apnea in children also has some special characteristics because of the great differences between children and adults in terms of growth and metabolism, respiratory physiology, and nighttime waking rhythm. Child patients with sleep apnea syndrome generally have more thin bodies and less obesity, and less daytime sleepiness, mainly manifesting as behavioral cognitive dysfunction. For example, delayed speech development, hyperactivity, and difficulty in maintaining concentration for long periods of time. The examination reveals abnormal oropharyngeal structure, enlarged tonsils, or enlarged adenoids that block the posterior nostrils by more than 50%, and about 25% of children are found to have narrow jaws, poorly developed middle, and protruding upper teeth, which are the main adenoids. In contrast, adults snore mostly because of obesity and too much soft tissue in the neck, which obstructs the airway. The pathophysiological characteristics determine the difference of treatment effect between the two, and the surgical efficiency of OSAS in children is over 90%.