Tonsil enlargement is mainly caused by the following reasons: 1. Physiological hypertrophy of the tonsils, mostly seen in children and adolescents, generally has no obvious symptoms, the tonsils are smooth, light red, without secretions, no adhesion with the surrounding, and no repeated inflammatory infection. 2. The tonsil swelling caused by tonsillitis is mainly caused by tonsillitis infection, which leads to congestion of tonsil essence, local inflammatory cell infiltration, pus thrombus attachment on the surface of tonsil, and the volume of tonsil essence increases significantly. Through anti-inflammatory treatment in clinic, tonsils will shrink accordingly after inflammation is controlled. 3. Lymphoma of tonsil is mainly unilateral and painless enlargement, which tends to occur in middle-aged and elderly patients. The patient had no obvious symptoms at the early stage, and only when the clinical physical examination was performed could the unilateral tonsil enlargement be seen. Clinically, local biopsy was taken for pathology, which can roughly clarify the nature.
