What are the diseases caused by adenoid hypertrophy in children? 1. Obstructive sleep apnea hypoventilation syndrome (OSAHS) Sleep is a physiological phenomenon that not only restores energy, stores energy, promotes physical growth, but also contributes to the development of the nervous system in children. The persistence of OSAHS can seriously affect the growth and cardiopulmonary function of children, and can even cause sudden death in children. Nocturnal hypoxemia and sleep architecture disorders are among the main causes of complications in children with OSAHS. 2. Secretory otitis media (SOM) is considered to be an important cause of secretory otitis media in children: (1) the eustachian tube may be blocked by the pressure of the hyperplastic adenoids, causing negative pressure in the tympanic chamber and mucosal exudate; (2) eustachian tube reflux and retrograde infection; (3) the adenoids are a “reservoir” for bacteria; (4) the adenoids are a “reservoir” for bacteria; and (5) the adenoids are a “reservoir” for bacteria. (3) adenoids are a “reservoir” for bacteria; (4) adenoids cause local immune abnormalities. The adenoids of children with recurrent SOM have increased lymphocyte activity and proliferating cells, resulting in hyperplasia and hypertrophy of the adenoids, as well as increased local immunity, which aggravates SOM. Chronic rhinosinusitis Adenoid hypertrophy and chronic rhinosinusitis are both common diseases in children, and the two often coexist and can cause complications such as otitis media, bronchitis, gastrointestinal dysfunction, nephritis, endocarditis, etc. Long-term development of adenoid hypertrophy and chronic sinusitis can lead to memory loss, affect growth and development, and cause adverse consequences. In recent years, the correlation between the two has attracted widespread attention of scholars at home and abroad. 4, cardiac function changes Adenoid hypertrophy of children with upper airway obstruction and sleep disorders lead to apnea and hypoventilation, repeatedly make the body hypoxia, hypoxemia, hypercapnia, relevant data show that long-term chronic hypoxia can lead to children’s heart, brain and other important organ changes and functional abnormalities, children with adenoid hypertrophy can cause nasopharyngeal obstruction, fall of the tongue when sleeping, inadequate ventilation of the airway caused by Hypoxia and carbon dioxide retention, pulmonary hypertension, and increased right heart load lead to the occurrence of pulmonary heart disease. 5, cognitive function changes Cognitive function is the basis of the brain’s higher intelligence activities, and should play a very important role in the completion of complex cognitive activities such as human learning, reasoning, and problem solving. Some studies have proven that severe slowing of cognitive speed and severe impairment of working memory may have important implications for the clinical detection of cognitive impairment. Conclusion Adenoid hypertrophy in children can lead to a variety of complications that seriously affect the physical and mental health of the child, and current clinical studies lead to diseases such as obstructive sleep apnea hypoventilation syndrome ( OSAHS), secretory otitis media ( SOM), and chronic sinusitis in children. In the cardiovascular system, early cardiac function can be altered, even leading to severe pulmonary heart disease, and can further lead to altered cognitive function in children, especially in cognitive speed and memory capacity. Currently, nasal endoscopic plasma-assisted removal of the hyperplastic adenoids improves ventilation, eliminates the lesions, and prevents complications. It is the more commonly used treatment.