Glandular hypertrophy generally refers to adenoid hypertrophy, the main causes of adenoid hypertrophy are genetic factors, repeated episodes of glandular inflammation, inflammation of neighboring organs and so on. 1. Hereditary factors: adenoid hypertrophy has a certain degree of hereditary possibility, especially in children, belongs to the physiological hypertrophy, usually does not have obvious symptoms. 2. Repeated episodes of inflammation of the adenoids: if the patient has inflammation of the adenoids, and the inflammation is repeated for a long time, it will stimulate the localization of the adenoids, thus causing adenoid hypertrophy. 3. Inflammation of neighboring organs: rhinitis, tonsillitis, sinusitis and other parts of the long-term inflammation will also stimulate adenoid hyperplasia and hypertrophy, nasal cavity, pharynx, tonsils are adenoid neighboring tissues, inflammation will stimulate the adenoid local. There are many reasons for adenoid hypertrophy, it should be timely to go to the hospital to improve the examination, a clear diagnosis, to give targeted treatment, do not ignore the symptoms, to take it lightly.