Symptoms that may occur in children with adenoid hypertrophy are mainly seen in the ear symptoms, pharyngeal, laryngeal and nasal symptoms, as well as adenoid face and systemic symptoms, etc. The details are analyzed as follows: 1. Ear symptoms: such as tinnitus, hearing loss and so on. 2. Pharyngeal, laryngeal and nasal symptoms: mainly manifested as open-mouth breathing during sleep, increased nasal secretion, nasal sound when speaking, etc. In addition, it can be combined with rhinitis and adenoid face and systemic symptoms. In addition, it can be combined with rhinitis, sinusitis and other diseases such as nasal congestion, runny nose and so on. 3. Adenoid face: such as exposed maxillary teeth, thick lips, lack of facial expression and maxillary bone lengthening and other manifestations. 4. Systemic symptoms: such as nausea, vomiting, malnutrition and thoracic deformities. It is recommended to consult a doctor in time when the above symptoms appear.