The advantages of tonsillectomy in adults are that it can avoid recurrent tonsillitis and improve the symptoms caused by enlarged tonsils, etc. The disadvantage is that the immune function of the tonsils will be lost. Adult tonsillectomy is mainly used to solve the recurrent infection and inflammation brought by chronic tonsillitis, to improve the symptoms of lack of oxygen in sleep brought by sleep apnea and snoring brought by enlarged tonsils, and to improve the extratonsillar diseases such as rheumatoid arthritis and psoriasis brought by tonsillar lesions. Tonsils belong to the immune organs and have certain immune effects. Although the immune function of tonsils begins to gradually decline and atrophy around the age of 20, tonsillectomy will lose the immune function of tonsils. Tonsillectomy itself brings complications such as postoperative bleeding, wound infection, contracture discomfort of the surgical scar, etc. are also the disadvantages of tonsillectomy in adults. Tonsillectomy surgery has both advantages and disadvantages, and patients are advised to weigh the pros and cons and choose whether or not to undergo the surgery according to their own situation.