The adenoids are a mass of lymphatic tissue located in the nasopharynx, and the lymphatic tissue develops most vigorously when children are 3 years old. Therefore, children’s adenoids proliferate most obviously and maximally at the age of 5-8 years, and begin to atrophy gradually at the age of 8-10 years, and some children completely atrophy at the age of 12 years, and there are those who have not yet atrophied by the time they reach adulthood, which is different for each person. For children with mild clinical symptoms, snoring during sleep, mild rhinitis, sinusitis, and mild secretory otitis media, conservative treatment can be carried out first, and the clinical symptoms will be relieved in 2-4 weeks, and the adenoids can be left out of the surgery for the time being. For excessive hypertrophy of adenoids, occupying more than 3/5 of the posterior nasopharyngeal nostril, causing severe sleep snoring, open-mouth breathing, lack of oxygen, and even severe allergic rhinitis, sinusitis, secretory otitis media, oozing otitis media, etc., it is recommended to perform early surgery, do not wait until it heals on its own, which may lead to serious complications, such as affecting the child’s growth and development, facial development.