Adenoid hypertrophy can be operated at the age of 4 to 10 years old, but the specific operation time should be judged according to the specific symptoms. Adenoids are located at the junction of the parietal and posterior walls of the nasopharynx, between the two sides of the pharyngeal saphenous fossa. Physiological adenoid hypertrophy usually develops to its maximum size at the age of 6-7 years old, and then begins to shrink gradually during puberty, and usually does not show obvious symptoms; pathological adenoid hypertrophy is prone to clinical symptoms and requires surgery. If the symptoms of children with adenoid hypertrophy are more serious, such as infants who cannot suckle at the breast, or those who have poor hearing that prevents them from learning language, early surgery may be considered. Since secretory otitis media is mostly associated with adenoid hypertrophy, adenoidectomy has gradually become a routine surgery for the treatment of secretory otitis media in children under 8 years old. If the above symptoms occur, it is recommended to go to a regular hospital to see a professional doctor to identify the cause and then treat it.