Children with enlarged adenoids may experience various symptoms such as nasal congestion, abnormal function of the eustachian tube, adenoid facies, etc., which may even lead to respiratory difficulties or suffocation in severe cases. 1. Nasal congestion: Enlarged adenoids will block the posterior nostrils, leading to symptoms of nasal congestion, and in the long run, it is easy to develop symptoms related to rhinitis and sinusitis. 2. Abnormal Eustachian tube function: adenoids compress the nasopharyngeal wall of the nasopharynx on the side of the Eustachian tube nasopharyngeal foramen, which can lead to abnormal Eustachian tube function, or even complete narrowing of the Eustachian tube, resulting in a negative pressure in the middle ear layer. 3. Adenoid face: adenoid hypertrophy leads to nasal congestion, can not breathe through the nose, long-term breathing through the mouth will lead to abnormal development of the maxillofacial bone. When the child has adenoid hypertrophy, it is recommended to consult the doctor as soon as possible and carry out targeted treatment under the guidance of the doctor.