When the condition of enlarged tonsils occurs, it may or may not affect breathing to a certain extent. Each patient has a different degree of enlarged tonsils, and the degree of impact on breathing varies greatly among individuals, as follows: 1. Impact on breathing: Some patients have tonsils with degree II or III enlargement, which will cause the respiratory channel of the pharyngeal cavity to become relatively narrow. If the patient’s pharyngeal cavity is relatively wide, the impact on breathing will be smaller, but if the patient’s pharyngeal cavity itself is narrow, the enlarged tonsils will cause more serious effects, which will cause the patient to have poor ventilation, and even more serious snoring and open-mouth breathing during sleep. The degree of tonsillar enlargement is relatively small in some patients, mainly showing a degree I enlargement, which does not have a significant adverse effect on respiratory ventilation.