The symptoms of adenoid hypertrophy are as follows: a. Local symptoms, ear symptoms, obstruction of the pharyngeal orifice of the eustachian tube, complicated by secretory otitis media, leading to hearing loss and tinnitus, and sometimes can cause purulent otitis media. Nasal symptoms are often complicated by rhinitis and sinusitis, with symptoms such as nasal congestion and runny nose, speaking with an occlusive nasal sound, snoring when sleeping, and in severe cases, obstructive sleep apnea hypoventilation syndrome. Throat and lower respiratory tract symptoms, secretions irritate the respiratory tract mucosa, often cause paroxysmal cough, easy to complicate bronchitis. Long-term open-mouth breathing affects facial bone development, elongation of the maxilla, high arched palate, uneven teeth, prominent upper incisors, thick lips, lack of expression, and the so-called adenoid face. Second, the systemic symptoms, mainly chronic toxicity and reflex neurological symptoms, manifested as nutritional stunting, slow reaction, inattention, night terrors, teeth grinding, urination and other symptoms.