Surgery for enlarged tonsils, any surgery has certain risks, and tonsillectomy is no exception, there may be side effects such as hypertrophy of the lingual tonsils, scarring and a transient decrease in immunity after surgery. Tonsils are the largest immune organ in the human body. Inflammation and enlargement of the tonsils often occurs after infection with bacteria and viruses, which can cause respiratory difficulties, swallowing discomfort and the formation of focal tonsils, etc. Tonsillectomy is performed in some cases after an accurate evaluation. Tonsillectomy has some side effects, first of all, the tonsils are the largest immune organ in the body, and tonsillectomy will cause a short-term decline in immunity. After the operation, due to the patient’s physical problems, there may be hypertrophy of the lingual tonsils and lead to the worsening of the foreign body sensation in the throat, and the scar hyperplasia in the operation area may lead to the narrowing of the pharyngeal cavity and other side effects. If discomfort occurs after tonsillectomy, it is necessary to actively consult a doctor for systematic examination to clarify the cause and diagnosis, and follow the doctor’s instructions to standardize the treatment.