Secretory otitis media may be relieved after surgery for adenoid hypertrophy because the tympanic cavity effusion is usually treated intraoperatively, and the negative pressure in the middle ear is reduced accordingly as the compressive factors of the Eustachian tube are lifted after removal of the adenoids. Adenoids, also known as pharyngeal tonsils, are located in the nasopharynx. If pathologic hypertrophy is ineffective with conservative treatment, surgical resection is an option. Adenoid hypertrophy may lead to a variety of ear, nose, and throat diseases, such as rhinitis, sinusitis, otitis media, and pharyngolaryngitis, if it causes dysfunction of the Eustachian tube and nasal ventilation. Patients with adenoid hypertrophy accompanied by secretory otitis media, after effective surgical treatment, through active auxiliary standardized conservative treatment, the inflammation of the middle ear will gradually improve over a period of time, and whether it is cured varies according to the individual’s condition.