Adenoids are lymphatic tissues in the nasopharynx and are located in the posterior part of the nasal cavity, the parietal posterior wall of the nasopharyngeal cavity. In children, pathological hypertrophy of the adenoids occurs due to frequent colds and flu, allergic reactions, rhinitis, sinusitis, and other secondary infections. Children with adenoid hypertrophy blocking the nasal cavity leads to sleep deprivation at night, and its harmful effects are as follows: 1, due to nasal blockage need to open mouth breathing, often accompanied by snoring, serious cases can have apnea, lack of oxygen easy to wake up, affecting the growth and development of children; 2, long-term oxygen deprivation can affect brain development, daytime mental depression or drowsiness, poor appetite, inattention, hyperactivity, poor memory, poor academic performance, slow reaction or impatient temperament; 3, long-term open-mouth breathing can affect the facial development, 3, the face can be affected. 3, long-term open-mouth breathing can affect the facial bone development, manifested as the upper lip short thick cocked, lower jaw sagging, nasolabial groove disappeared, hard palate high arch, teeth alignment is not neat, poor bite, etc., forming a special “adenoid face”; 4, long-term breathing problems lead to poor lung expansion, can cause chicken chest or flat chest, or due to long-term hypoxia and the occurrence of The enlarged adenoids block the posterior nostrils and the eustachian tube, which can lead to recurrent rhinitis and sinusitis and otitis media, affecting the sense of smell and hearing. Children with these conditions should be seen by an otolaryngologist. In mild cases, they can be treated conservatively with medication; in more severe cases, adenoidectomy should be performed, often at the same time as tonsillectomy. If the surgery is timely, the results are good.