Symptoms of pediatric adenoid hypertrophy include nasal congestion, open mouth breathing, and other ear and pharyngeal complications. Pediatric adenoid hypertrophy, also known as pharyngeal tonsillar hypertrophy, refers to pathological hyperplasia and hypertrophy of the adenoids due to pharyngeal infection or repeated inflammatory stimulation. Common causes of acute and chronic nasopharyngitis recurrence, as well as neighboring organs such as the nasal cavity, sinuses, tonsils of inflammation spread to the nasopharynx, stimulating adenoid tissue hyperplasia. After pediatric adenoid hypertrophy, secretions will pool in the nasopharynx, resulting in local symptoms such as nasal congestion and open-mouth breathing. If pathogenic microorganisms and toxins in the nasopharyngeal secretions retrograde to the middle ear, it may cause otitis media, with symptoms such as ear stuffiness, ear pain, and hearing loss. If the secretions flow down and irritate the mucous membranes of the respiratory tract, they may cause pharyngeal discomfort, bouts of coughing and symptoms of bronchitis. If the symptoms of adenoid hypertrophy appear in children, parents are advised to bring their children to the doctor in time for early intervention and treatment to avoid aggravation of the condition and affecting the quality of life.