The optimal age for adenoid surgery is usually around 4-10 years old, which should be decided based on clinical presentation, etc. Adenoids, also known as pharyngeal tonsils, are submucosal lymphoid tissues in the posterior wall of the nasopharynx. Adenoids are relatively large in childhood. If the enlarged adenoids do not cause any discomfort to the child, they are physiologically enlarged and do not need to be treated. However, if discomfort such as nasal congestion or snoring occurs, surgery is required. The reason for choosing after the age of 4 is because of the risk of anesthesia. It is not advisable to wait for the adenoids to shrink naturally. Even if the adenoids shrink after structural abnormalities such as jaw deformity, deviated nasal septum, or anterior protrusion of the incisors have developed, it is not helpful, so the choice is to do it before the age of 10 years. It is also necessary to choose a treatment method based on the symptoms and other conditions, after the doctor has clarified that there are indications for the treatment. The effects of adenoid hypertrophy often require careful observation by parents and early medical attention.