Adenoids, also known as pharyngeal tonsils and proliferators, are located at the junction of the parietal and posterior walls of the nasopharynx, between the two sides of the pharyngeal fossa, that is, the lymphatic tissue gathered in the mucosa of the nasopharyngeal parietal and posterior wall migrations. The adenoids have an orange flap-like surface. In front of the human nose, there are two anterior nostrils and a pair of posterior nostrils, and the adenoids exist in the location of the posterior nostrils of patients, often growing in the nasopharynx, with the round pillow of the eustachian tube on both sides, connected to the middle ear cavity, and located in a lymphatic loop with the tonsils, responsible for lymphatic drainage. Adenoids are usually large in children, but they gradually shrink after the age of 8-10 years. If the adenoids become infected during childhood, they become enlarged and inflamed. Repeated inflammatory stimulation of the adenoids leads to pathological hyperplasia and hypertrophy, causing the corresponding symptoms of adenoid hypertrophy, which is common in children and can also occur in some adults. It is often combined with chronic tonsillitis or tonsillar hypertrophy, causing symptoms such as blocked nose and open-mouth breathing, which worsen at night, and persistent adenoid hypertrophy, resulting in symptoms of hypoxia, leading to nasal agitation, widening of the nasal cavity, high elevation of the palate, protrusion of the teeth, and widening of the distance between the eyebrows and other changes in facial morphology, forming an adenoid face, and the symptoms will become more and more obvious after a long time. Therefore, once adenoid hypertrophy appears, you should go to the hospital in time to check and relieve the symptoms through surgical treatment and other methods.