Chronic tonsillitis is a chronic inflammatory disease of the tonsils, which can arise from two sources. One is due to the repeated occurrences of acute inflammation of the tonsils, incomplete healing, poor physical constitution of the patient, or strong infectiousness of bacteria, resulting in unresolved, lingering chronic inflammation. In this case, the tonsils undergo recurrent acute flares on the basis of chronic inflammation, leading to the chronicity of the inflammation that cannot be cured. Another possible scenario for the onset of this tonsillitis is that it begins as a chronic inflammation. This is mainly due to a bacterial infection that is either not severe or a chronic latent infection. Therefore, the inflammation of the tonsils does not show obvious acute inflammatory signs but exhibits signs typical of chronic inflammation, primarily due to these two reasons.