The adenoids, like the tonsils, are pediatric glandular tissue, and God gave each organ or tissue a certain function in the creation of man. However, when the adenoids are repeatedly irritated by inflammation, they can become hyperplastic in varying degrees. Degeneration of hyperplastic adenoids can occur in children around the age of 10, with complete degeneration occurring around the age of 13-14. Adenoids that do not completely degenerate are called adenoid remnants in adults. Overgrown and enlarged adenoids are called adenoidal hypertrophy in children. The hypertrophic adenoids obstruct the posterior nostril and may cause compression of the eustachian tube by the round pillow, thus blocking the only airway between the middle ear and the outside world and contributing to the development of secretory otitis media in children. A large number of bacteria are retained in the enlarged adenoids, and the reproduction of bacteria causes recurrent episodes of chronic rhinitis and sinusitis in children, with nasal congestion, runny nose, recurrent coughing and coughing up sputum all being the result of adenoidal hypertrophy. The culprit of snoring (snoring, restless sleep, open-mouth breathing) in children is adenoid hypertrophy, which is also a common cause of developmental delay in young children. Therefore, if your child has the following symptoms, please consult a doctor promptly to check whether the adenoids are overly enlarged: 1. snoring, open-mouth breathing, restless sleep at night, or even apnea. 2. Recurrent hearing loss (not responding to calls, watching TV with the sound turned up). 3, often “cold”, nasal congestion, yellow pus nose constantly or cough, cough phlegm, throat does not feel fresh. Children with adenoid hypertrophy and the above clinical symptoms should be operated as soon as possible. In children with tonsillar hypertrophy, the adenoids can be removed at the same time.