Adenoid hypertrophy is a common disease in children, the main symptom is that the child will snore at night, open-mouth breathing symptoms, sometimes accompanied by breath-holding, sleep often turned over, especially after the cold, the symptoms will be significantly aggravated, can be clearly diagnosed by nasopharyngeal lateral film or nasal endoscopy. Conservative treatment can be done by spraying bilateral nasal cavities with mometasone furoate, usually at bedtime, and oral Oronema drops can be taken to promote the discharge of mucopurulent snot from the nasal cavity. After 1 month of treatment, if the child’s symptoms still do not improve, surgical treatment can be considered. The surgery is usually done under general anesthesia, and the child needs to be hospitalized. It uses low-temperature plasma technology to ablate the adenoids, and after the surgery, it also needs to be combined with medication to consolidate the treatment.