The adenoid is a normal lymphoid organ in the nasopharyngeal area of the human body. Enlargement of the adenoids can block the nasal cavity, leading to otitis media, snoring during sleep, and other symptoms. The main treatment for enlarged adenoids is surgery. Since the adenoids do not have a complete capsule, there is a certain chance of recurrence after surgery. There are two scenarios for recurrence: one is a mild, localized proliferation that does not cause symptoms such as snoring or otitis media again; the other is a severe enlargement of the adenoids, leading to the reoccurrence of spontaneous conditions like snoring and otitis media. This latter situation accounts for about 0.5% of cases. Therefore, while there is a certain rate of recurrence after adenoidectomy, the rate of recurrence is relatively low.