Some patients undergo tonsillectomy if their tonsils are frequently inflamed or excessively enlarged, so what harm does this surgery do to the body? Because the tonsils are located between the respiratory tract and the digestive tract, tonsil surgery can affect the respiratory tract if done improperly, and it can also affect a person’s immune system. 1. Affects the pharynx. The human throat is the place where food and gas must pass through, and it is often exposed to some substances such as bacteria and germs, which play a protective role for the body’s organs. If the tonsils are removed, then the germs do not get some filtration and will infect the body’s lungs or kidneys and some other tissues. 2. Respiratory tract infection. The tonsils are a defense tissue of the respiratory tract, which filters bacteria and produces certain antibodies that protect the respiratory tract and esophagus from germs. Once the tonsils are removed, the respiratory tract will have less of a natural protective gate and will be more susceptible to bacterial infections. 3. Decreased body immunity. Removal of the tonsils reduces the body’s resistance to viruses and leads to a decrease in immunity. Improperly removed tonsils are still harmful to the body, and unless it is a serious condition, surgery should not be done easily.