Tonsil size is divided into III degrees. In I degree, tonsils are hidden or do not exceed the palatopharyngeal arch; in II degree, tonsils exceed the palatopharyngeal arch and do not reach the position of the uvula; in III degree, tonsils reach the position of the uvula or exceed the position of the uvula. The diagnosis of tonsillar enlargement depends on the size of the tonsils. If the tonsils exceed the midline of the palatopharyngeal arch and approach the position of the pendulous, then tonsillar enlargement should be considered. If the tonsils are enlarged to a certain extent, surgery is needed to remove the tonsils to relieve the symptoms of dyspnea if they are causing dyspnea. If the tonsils are not causing dyspnea or recurrent inflammation, and no new organisms are found on the surface of the tonsils, and no immune diseases such as nephritis or rheumatoid arthritis are caused, the tonsils do not need further treatment at this time.