What is this article about?
The tonsils, which form part of the immune system, consist of two pads of lymphatic tissue at the back of the throat (one on each side. More lymph nodes known as adenoids sit behind the nose at the back of the throat, out of sight. Together, the tonsils and adenoids help to prevent infection by trapping pathogens that enter the nose and mouth and producing antibodies to kill them. Despite this, the tonsils and adenoids themselves are prone to infection and inflammation, particularly among children.