Adenoid hypertrophy is mostly caused by long-term and repeated inflammatory stimulation of the nasopharynx and surrounding tissues, which can cause ear symptoms, nasal symptoms, pharyngeal and lower respiratory tract symptoms, adenoid face and systemic symptoms and other symptoms. 1. Ear symptoms: when adenoid hypertrophy, it can compress the Eustachian tube and lead to the blockage of the Eustachian tube, the secretion from nasopharynx and the pathogenic microorganisms contained therein can retrograde into the middle ear, which can cause otitis media, and the patients can show symptoms such as ear stuffiness, hearing loss, tinnitus, ear pain, and so on. 2. Nasal symptoms: when adenoid hypertrophy, patients may show symptoms of nasal congestion, some patients may be accompanied by rhinitis, etc., due to the increase in secretions, so there will be symptoms of runny nose. 3. Pharyngeal and lower respiratory tract symptoms: nasal secretions downstream, can stimulate the throat and respiratory tract, leading to throat discomfort, irritating cough, as well as coughing, coughing up phlegm and other bronchial related symptoms. 4. Adenoid face: for those who have adenoid hypertrophy for a long time, due to the need to open their mouths to breathe during sleep, the development of the maxillofacial bone is abnormal, and then adenoid face appears. 5. Systemic symptoms: mainly chronic toxicity and reflex neurological symptoms. The symptoms include poor nutritional development, slow reaction, poor concentration, night terrors, teeth grinding, and enuresis. It is recommended that patients seek medical attention as soon as possible, improve the examination, and standardize the diagnosis and treatment by specialists.