The etiology of snoring in children is clear, and the vast majority of it is caused by enlarged tonsils and adenoids. around the age of 2, due to changes in the immune mechanism and more stimulation from the outside world, the lymphatic tissues in the upper respiratory tract of the child will proliferate. In some cases, due to overgrowth, respiratory infections occur, and repeated infections stimulate further proliferation of lymphatic tissue; some children are allergic to, or over-nutrition, constantly stimulating lymphatic tissue. Over time, lesions are formed. Children snoring, in addition to leading to sleep apnea, will seriously affect the growth and development, especially in infancy, snoring, more harmful. On the one hand, the nervous system of infants and young children is in the developmental stage, very sensitive to the lack of oxygen, which is very likely to affect the intellectual development of children. The growth hormone, which promotes the growth and development of children, is mainly secreted in the state of deep sleep at night. This kind of children will generally appear short stature, intellectual development disorder, inattention, irritability and hyperactivity, wake up grumpy and so on. Some data show that normal children can grow 5-7 centimeters a year, but snoring children may only grow one or two centimeters a year, or even not grow. On the other hand, the child’s head shape will also change. With frequent snoring, the jaw will become smaller. Due to open-mouth breathing, the development of the nose is restricted, and the typical “adenoid face” will appear: the nose is turned upwards, the nostrils are in the sky, the teeth on the top are separated, the jaw is small, and it looks a bit silly. Parents should observe whether the child often snores for more than half an hour during sleep, has difficulty breathing, or sleeps on his/her back, with knees bent to the chest, neck hyperextended, head turned to the side, nose opening and closing, intercostal and suprasternal depressions, and open-mouth breathing. If so, it is important to seek medical attention as soon as possible. Tonsil and adenoidectomy is a treatment with significant therapeutic benefits due to its clear cause. Once diagnosed, early surgery is advisable. Before surgery, a polysomnography (PSG) can be done to see if the child has sleep apnea syndrome. If not, surgery can be postponed and other methods can be used under the guidance of the doctor. In rare cases of snoring caused by obesity, it is necessary to control eating and strengthen exercise to reduce weight.