In some cases, the children always sleep peacefully at night, snoring, open-mouth breathing, sleeping from one end to the other, irritability, sweating, bedwetting, night terrors, teeth grinding, etc., usually “picky”, “strange temper “The “cold” often appears runny nose, sore throat or repeated coughing, sometimes earache, inattention, watching TV with the volume turned up, and so on. This should be alerted to a disease, that is adenoid hypertrophy (adenoiditis)! The adenoids grow at the very back of the nose, down through the mouth, and the two tonsils form a “pin” structure, as a young immune organ, generally at the age of 6 years old to grow to the maximum, and gradually shrink thereafter. If the adenoids are enlarged (adenoiditis), because of the special location of the adenoids, to both sides through the pharyngeal tube can cause otitis media, forward can cause rhinitis, sinusitis, down to cause post-nasal drip, tonsillitis, pharyngitis, bronchitis. Because of long-term open mouth breathing, children’s facial development will be deformed, appearing high arched hard palate, protrusion, uneven teeth alignment, upper incisors protruding, poor bite and other “adenoid face”. In severe cases, children may also suffer from depression, headache, dizziness, memory loss, slow reaction time, and poor academic performance. Children’s growth and development is often during sleep at night, because adenoid hypertrophy blocking the airway leads to serious lack of oxygen during sleep, causing a reduction in the secretion of growth hormone, long-term ischemia, lack of oxygen, body resistance to decline, easy to repeatedly “cold”, not only affect the child’s height, will also affect the child’s future intelligence. Therefore, if children have the above-mentioned conditions, it is recommended to check the nasopharynx to see if the adenoids are enlarged, and generally if the adenoids block the posterior nostril by more than 2/3, surgery is recommended. Of course, if adenoid hypertrophy causes otitis media, sinusitis, tonsillitis, laryngitis, tracheitis, etc., or if the child snores and sleep monitoring confirms nighttime hypoxia and the presence of obstructive sleep apnea syndrome, surgery is recommended even if the blockage of the posterior nostril does not exceed 2/3.