Most of the snoring in children is caused by adenoid hypertrophy. Mild adenoidal hypertrophy in children is often physiological. Lymphatic tissue is present in the nasopharynx of infants at birth, and it proliferates with age, reaching its maximum extent at the age of 6. I. Local manifestations: children due to adenoid hypertrophy blocking the posterior nostril and pharyngeal pharyngeal opening, can occur otorhinopharyngeal and other symptoms. The symptoms are open-mouth breathing during sleep, snoring with the back of the tongue, restless sleep at night, nasal secretion, occlusive nasal sounds when speaking, and slurred speech. As a result of long-term open-mouth breathing, the facial bone development is impaired, the maxilla becomes longer, the hard palate is high arched, the teeth are uneven, the upper incisors are exposed, the lips are thick, the face lacks expression, and there is dementia, forming an “adenoid face”. The ataxic movement between swallowing and breathing is dysfunctional, and choking and coughing often occur. The downward flow of secretions stimulates the mucous membrane of the respiratory tract and makes it easy to suffer from bronchitis. Due to the obstruction of the eustachian tube, it is easy to cause non-suppurative otitis media resulting in hearing loss and tympanic membrane invagination. Systemic symptoms: There are often systemic nutritional and developmental disorders, mainly manifested as chronic toxic reflex neurological symptoms, such as sluggish expression, chest tightness and restlessness, poor lung expansion, resulting in chicken chest or flat chest over time. A few due to chronic nasal obstruction, long-term hypoxia and pulmonary heart disease, and even acute heart failure. The nasopharynx can be palpated and soft masses can be palpated. If necessary, x-ray nasopharyngeal lateral radiographs can be used to help diagnose and treat the disease. Surgical removal of adenoids is the best treatment for adenoid hypertrophy. At present, most of them are treated by minimally invasive nasal endoscopic aspiration and excision of adenoids with power system, which has short operation time, little postoperative reaction of children and generally no postoperative bleeding.