Tonsil is the portal of respiratory tract, especially in childhood, and it is an active immune organ, and contains lymphocytes and immune cells at all stages of development, which can inhibit and eliminate pathogenic bacteria and viruses entering through the mouth and nose.
Immunoglobulin TgA produced by tonsil has strong immunity, which can inhibit the adhesion of bacteria to respiratory mucosa, inhibit the growth or spread of bacteria, neutralize and inhibit viruses, and IgA can also enhance the function of phagocytes through the activation of complement.
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A cold may cause tonsillitis, because a cold is probably caused by a virus infection, so once this person catches a cold, the virus may invade the tonsils and cause tonsillitis.
Nowadays, many diseases may be caused by people's low body resistance. To prevent tonsillitis, we must improve our immunity. Regular exercise and personal nutrition can prevent diseases to a great extent.
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