Overview
The adenoids are a mass of soft tissue behind the nasal cavity. Like lymph nodes, adenoids are part of the immune system and are made of the same type of lymphoid tissue. The adenoids and tonsils work by trapping germs coming in through the mouth and nose.
We all have adenoids at birth and in childhood, but as we go into adolescence, they begin to shrink. The adenoids of most people have vanished by adulthood.



