Tonsil whitening is a common manifestation of inflammatory diseases of the tonsils, generally associated with acute tonsillitis, tonsillar keratosis, pharyngeal diphtheria and other factors, such as through active standardized treatment is often not serious, if delayed for a long time to cause strong local and systemic symptoms, and even produce complications is more serious. 1. Acute tonsillitis: acute tonsillitis is mostly caused by bacterial and viral infections, usually due to the appearance of white purulent secretions or pseudomembranes on the mucosal surface of the tonsils, which may lead to whitening of the tonsils. 2. Tonsillar keratosis: generally due to fungal parasitic infections pharyngeal mycosis, causing tonsils and keratinization, often manifested as the surface of the tonsils with milky white, debris-like keratinized material, which may lead to the phenomenon of tonsillar whitening. 3. Pharyngeal diphtheria: a respiratory infectious disease caused by diphtheria bacillus, pharyngeal diphtheria is manifested as a grayish-white pseudomembrane on one or both tonsils, which may lead to the phenomenon of whitening of the tonsils. If the phenomenon of tonsil whitening occurs, it is recommended to go to the regular hospital in time, to clarify the cause and give targeted treatment.