The tonsils are two masses of tissue at the back of the throat that trap and filter germs and produce antibodies to fight infections. They are a hard-working part of the lymphatic system and, due to their role, are prone to infection. Viruses and bacteria are the most likely infections to cause inflammation of the tonsils, which leads to tonsillitis. The condition is often recurring; people who get multiple infections may need their tonsils removed.
Inflammation and swelling of the tonsils are the most common symptom of tonsillitis. Naturally, this is uncomfortable. You can feel the engorgement in the back of your throat, which can make swallowing difficult. The inflammation will be obvious merely looking at the tonsils. Other glands in the neck, the lymph nodes, and under the chin can also become swollen.
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