Baby snoring has become one of the common diseases in infants and children. Snoring in infants is mostly physiological, which is caused by narrow nasal passage and more secretions that obstruct airflow. As the baby grows older, it will gradually improve after three or four months of age. As the baby grows older, if the snoring still occurs or becomes more serious, the family should pay attention to it. Pathological snoring is commonly caused by acute upper respiratory infection, tonsillar hypertrophy, nasopharyngeal hyperplasia (adenoid), obese babies, small chin disorder and structural abnormalities. The tonsillar hypertrophy accounts for 70% to 80% of the children who snore clinically, especially for children over 2 years old. When snoring symptoms appear, parents should be alert to whether the tonsils are hypertrophied. Dangerous signs of tonsillar hypertrophy: 1. Snoring: Snoring is a major symptom of tonsillar hypertrophy, which is caused by the obstruction of the airway by the hypertrophied tonsils, and can develop into sleep-disordered apnea in severe cases, resulting in a state of oxygen deprivation at night. Long-term hypoxia prevents children from getting a good night’s rest, being bed-ridden in the morning, fatigued during the day, grumpy and easily irritable. In addition, children with frequent snoring are four times more likely to develop ADHD than ordinary children. These children often show inattentiveness in class, hyperactivity, etc. 2. Nocturnal enuresis: Children with tonsillar hypertrophy often experience bedwetting at night. This may be because tonsil hypertrophy makes the child’s breathing irregular at night, sleep apnea, the brain is in a state of oxygen deprivation, unable to control the bladder constriction muscle and cause urinary consciousness disorders. 3, obesity: obese babies are usually heavy phlegm, easy to cough phlegm, coupled with hypertrophy of the tonsils and thick fat of the neck and chest on the extrusion of the airway, increasing the resistance of the airway, seriously affecting the quality of sleep at night, thus endangering the physical and mental health of the baby. At the same time, obese babies are more lazy, depressed during the day, do not like to exercise, forming a vicious circle, so that the child’s weight continues to increase. 4, repeated upper respiratory tract infections: tonsillar hypertrophy of the baby is prone to recurrent acute upper respiratory tract infections, such as acute purulent tonsillitis, acute otitis media, rhinitis, sinusitis, bronchitis, children often appear pharyngeal discomfort, voice change, speech with occlusive nasal sounds, coughing and spitting, shortness of breath, low-grade fever and other symptoms. 5, adenoid face: due to long-term open-mouth breathing, airflow impact on the hard palate, making it deformed, high arch, affecting the development of facial bones, narrow upper jaw, high arch of the hard palate becomes narrower, teeth protrusion, irregular teeth, poor bite, lower jaw drooping, upper lip short thick upward, lower lip hanging, outer canthus down, shallow nasolabial fissure flat. In addition, the baby’s spirit is depressed, the facial expression is dull and dull, which is the “adenoid face”. 6, backward development, intellectual hindrance: because children need a lot of oxygen for growth and development, long-term hypoxia, directly leading to insufficient oxygen supply for brain development, resulting in reduced secretion of growth-promoting hormone. The affected children show poor nutritional development, backward height, chicken breast, anemia, emaciation, indigestion, easy fatigue, headache, dizziness, inattention, slow reaction, boredom, easy to be frightened, irritable temperament, and grinding teeth in sleep at night.