Tonsillar hypertrophy in 7-year-old children with complications such as sinusitis and dyspnea requires surgical intervention; in the absence of such symptoms, it can be temporarily observed. Enlarged tonsils are often caused by chronic tonsillitis and other diseases. If the local mucus and pus block the posterior nostril, it may lead to sinusitis, as well as symptoms such as occlusive nasal sound and sleep snoring; long-term tonsillar hypertrophy may lead to dyspnea, thoracic deformity, etc., and there may also be night terrors, slow reaction time, lack of concentration, and irritable temperament. Without the above symptoms, surgery may be withheld for the time being. The presence of the above symptoms should be taken seriously and pharyngeal examination, indirect nasopharyngoscopy and acoustic impedance examination are recommended. Once the diagnosis is confirmed, the adenoids should be removed as soon as possible, so that the symptoms can be improved and the development and nutritional status can be restored to normal as soon as possible. In addition, for children with chronic sinusitis and enlarged adenoids, early adenoidectomy is recommended. It is recommended that children with enlarged tonsils go to the hospital in a timely manner.